What causes a gas to effuse?

Answers

Answer 1

Effusion is said to happen when gas molecules escape into a vacuum through a pinhole.

One gas mixes with another during diffusion, typically through thermal random motion that causes collisions and releases molecular energy. The capacity of gas to pass through a small aperture is known as effusion. In chemistry, the phrases effusion and diffusion are frequently used to refer to two distinct properties of gases.

However, for many who are just beginning to learn about gases, studying the terminologies can get rather perplexing. Although they may have a similar sound, the phrases diffusion and effusion are completely different. They cannot be used interchangeably since they have different meanings.

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Related Questions

Choose the formula for calculating percent composition.

Answers

Answer:

The equation for percent composition is (mass of element/molecular mass) x 100.

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The octet rule states that atoms tend to form bonds so that each atom has eight ________ in its _______
shell

Answers

Answer:

electrons..............

Answer:

electrons, outer

Explanation:

What does it mean if a solution is a "weak acid "? Strong acid? Give logical ph values for each

Answers

Answer:

A weak acid is an acid that partially dissociates into its ions in an aqueous solution or water. In contrast, a strong acid fully dissociates into its ions in water. At the same concentration, weak acids have a higher pH value than strong acids.

Explanation:

:)

What type of heat transfer causes the water in the bottom of the pool to be cooler and the water at the top to be warm?

Answers

Answer:

i think its convection

Explanation:

Which type of cell is associated with the statements below? Fill in the blank with either (voltaic cell, electrolytic cell, both).
Non-spontaneous reaction occurs:
Spontaneous reaction occurs:
Oxidation occurs at anode:
Electrolyte supports electron flow:

Answers

Answer:

Non-spontaneous reaction occurs: electrolytic cell.

Spontaneous reaction occurs: voltaic cell

Oxidation occurs at anode: both

Electrolyte supports electron flow: both

Explanation:

1 pt
Vanadium (V) is element 23 on the periodic table. A sample contains 2.88x1022 atoms of V. Calculate the amount of V.
1 pt
x mol V
1 pt
Resubmit
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PLS HELP 6TH GRADE ITS ONE QUESTION ABOUT SCIENCE

Answers

Answer: The answer is C

Explanation:

Your answer would be C. :)

Given a 6.80 g sample of H2O how many grams of oxygen is produced assuming the decomposition goes to completion

Answers

Answer:

6.0444g

the formula must be after balancingknown as 36(mass) of H2O can produce 32(mass) of O2so 6.80g of H2O can produce (x)g of oxygen

According to the stoichiometry of the decomposition of water 6.04  grams of oxygen is produced assuming the decomposition goes to completion.

What is stoichiometry?

Stoichiometry is  defined as the determination of proportions of elements or compounds which are present  in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.It is useful in balancing chemical equations.According to the reaction, 36 g water gives 32 g oxygen thus 6.80 g water will give 6.80×32/36=6.04 g.

Thus, on  decomposition of water 6.04  grams of oxygen is produced assuming the decomposition goes to completion.

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1. How many moles does 24 g of Mg contain?​

Answers

Explanation:

1 mole Of atom = GAM

MG=24g

GAM of Mg=24g

Therefore 24g=mole

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A 4 feet tall student went summing pool. He saw depth of water in pool less than 4 feet.Will he drowned.Write reason

Answers

Answer:

Question says , the height of the student = 4 feet, ... This means, if the student goes for swimming in the pool, however he does not know swimming, he will not be drowned until he is suffering from an injury or external force.

It depends if the water is less then where his face is, if it’s below his face then no, if it’s above... then probably.

Find the amount of water containing 14.02 * 10²⁴ molecules​

Answers

Answer:

14.02 x 10²⁴ molecules

Explanation:

To solve this problem we will use Avogadro's number: It relates to the number of molecules (or atoms) contained in 1 mol of any given substance:

14.02 x 10²⁴ molecules ÷ 6.023 x 10²³ molecules/mol = 23.28 moles

Thus, 23.28 moles of water contain 14.02 x 10²⁴ molecules.

which statement best explains why chlorine is added to drinking water? A. Chlorine cures infections caused by bacteria or other microorganisms B. Chlorine protects people teeth against cavities C. Chlorine prepares the body to fight future infections D. Chlorine kills most pathogens in water

Answers

Answer:

to protect peoples teeth against cavities

Explanation:

i just know

Answer: its D

Explanation: A.P.E.X.

What is the proper name for the chemical formula Cl4O5?

Answers

Answer:

Carbon tetraiodide

Explanation:

let me know if it works

If you tested two samples of a particular pure substance, what would you find?

Answers

Answer:

The properties of a pure substance can be used to determine whether a sample is a pure substance or mixture because the characteristic properties of matter can be used to identify a sample. The result is a mixture called a composite.

Explanation:

Pure substances contains their own molecules only and not any  impurity. Thus, when we tested it  only shows the properties of its own.

What are pure substances?

Pure substances are substances containing its pure composition without any impurities. For example water, fruits, acids etc. are pure substances and they does not have a combination other substances.

Mixtures are the combination of two or more pure substances, and the can be heterogenous or homogenous. Whereas, pure substances homogenous only thus forming only one phase.

When we tested mixtures qualitatively, they shows the properties of each  individual components in it. Whereas, pure substances give inly its own characteristics.

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Why are the elements in group VIIIA unreactive?

They are all gases.

They have an even number of electrons in their outer shell.

They have a full outer shell of electrons.

They each have a stable nucleus.

Answers

Number 1/letter A is the answer to your asked question!

Plants cells also gain energy through cellular respiration.

True or false?

Answers

True ................

Answer:

true

Explanation:

What type of weathering occurs when acid rain changes rocks? A. erosion
B. deposition C. chemical weathering D. physical weathering

Answers

Answer:

c...................................

Can someone please explain to me what a Ecologist does for a living? (Or daily in their career?)

Answers

ecologists look at relationships between nature, studying the interactions between humans, animal and plants.

Answer:

Ecologists focus on the relationship of organisms within their environment. Ecology is a branch of biology (biology is the study of life). Given the broad scope of ecology, there are multiple sub-disciplines that an ecologist can choose to focus on. Since all living things (plants, animals, microbes) depend on other living things and a healthy environment to survive, ecologists may specialize in one aspect of an ecosystem. Examples include terrestrial (land), aquatic (water), applied (concepts and principles of ecology), conversation (management of biodiversity), and evolutionary (evolution).

Explanation:

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according to the ____ rule, elements tend to react until they have the same electron configuration as a _____. _____, found on the left of the _____, tend to lose electrons and from ____. _____ tend gain electrons to form _____.

Answers

Answer:

What chapter is this and what grade are you, i can check this for you

Explanation:

what is an accurate description of a period in the periodic table

Answers

Answer:

The periods of the periodic table are the horizontal rows.

Explanation:

Answer:

period is a horizontal row of the periodic table

Explanation:

A period in the periodic table is a row of chemical elements. All elements in a row have the same number of electron shells. Each next element in a period has one more proton and is less metallic than its predecessor

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industrial gases cause acid rain why​

Answers

because the industrial gas is very harmful for us it is made up chemical and toxic gases

Answer:

The usual culprit is burning coal.

Explanation:

This produces a lot of carbon dioxide as well as sulphur dioxide. Other industrial processes, and vehicle emissions, produce similar oxides unless they are 'scrubbed' out. They react with atmospheric moisture to produce acids like carbonic, sulphurous and nitrous acids. Which is then precipitated. It should be remembered that a volcanic eruption has this effect too.

What is the acceleration due to gravity at Earth's surface?​

Answers

Answer:

9.8 m/s2

Explanation:

That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2.

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The density of water H20 is bout 1 g/ml. If u have a bottled water that is 500 ml how many grams is this

Answers

Answer:

500 grams

Explanation:

500 milliliters x 1 gram per millileter = 500 grams.

biology and physics are so closely related that sometimes the fields overlap. what experiment might both biologist and physicists do

Answers

Answer:

Study how the body's nerve cells react to an electrical shock.

Explanation:

Answer:

Study how the body's nerve cells react to an electrical shock.

Explanation:

a p ec

Which phrases describe the oceans? Check all that apply.

cover more than 70 percent of Earth
provide oxygen for life on Earth
contain fresh water
constantly in motion
interact with other Earth systemsWhich was found to be unconstitutional based on the Supreme Court’s ruling in Scott v. Sandford?

Answers

Answer:

the first one is the answer

Answer:

Phrases that describe the oceans are

cover more than 70 percent of Earth

constantly in motion

interact with other Earth systems

Explanation:

What are the two most important properties of ocean water?

Two of the most important characteristics of ocean water are its temperature and salinity.

How many electrons are needed in the outer energy levels of most atoms to be chemically stable?​

Answers

Answer:

8 electrons

Explanation:

How many atoms would you find in 3.60 g of Boron?

Answers

Answer:

1.8 * 10^24 atoms

Explanation:

n = M(B) / m = 10.8 / 3.60 = 3 mol

N = n * Na = 3 * 6*10^23 = 1.8 * 10^24 atoms

Which statement about copper, diamond, and silicon(IV) dioxide is correcta)Copper and silicon(IV) dioxide have similar electrical conductivityb)In diamond the carbon atoms are covalently bonded as flat sheetsc)In silicon(IV)dioxide the silicon and oxygen atoms are covalently bonded in flat sheetsd)The structure of copper includes a lattice of positive ions

Answers

Answer:

In diamond the carbon atoms are covalently bonded as flat sheets

In silicon(IV) dioxide the silicon and oxygen atoms are covalently bonded in flat sheets

The structure of copper includes a lattice of positive ions

Explanation:

Diamond and silicon(IV) dioxide are covalent network solids. Covalent network solids are made up of atoms joined to one another by covalent bonds to form a giant lattice, The solids are hard and have a very high melting point. They do not conduct electricity. So, for both diamond and SiO2, atoms are covalently bonded to yield flat sheets in a covalent bonded network solid.

Copper is a metallic substance having metallic bonds, a metallic crystal consists of positive ions and a cloud of electrons.

how much empty space was there in the medium-sized rock sample​

Answers

Answer:

I'm assuming this is from a lab that you did - in which case, I can't really help you out here.

Explanation:

Nah I’m going to have to say that it is 27

What is the difference between an empirical formula and a molecular formula?

Answers

Answer:

The empirical formula simply states the ratios of the elements that make up the molecule, while molecular formulas specify the amounts of each element exactly, not just giving the ratio. Let's take ethane (C2H6) as an example.

Other Questions
Hydrogen peroxide is oxidized with permanganate solution to produce oxygen gas by the following reaction:2H + H2O2 + 2MnO4 -> 2MnO2 + 4H2O + 3O2In the lab a student mixed 30.0 mL of 0.30 M hydrogen peroxide solution with 30.0 mL of 0.30 M potassium permanganate solution. The oxygen that was produced was collected by water displacement at 298 K and 1.00 atm of pressure. The volume of oxygen collected was 178 mL. (Ignore the effect of water vapor in the collection tube here.)a.) What is the limiting reactant?b.) What is the theoretical yield of oxygen gas, in milliliters?c.) What is the percent yield of oxygen gas? Why must an agent present accurate complete and factual plan information to consumers? Snacks provide about _____ of the average teenagers total daily food energy intake. The following are the Jensen Corporation's unit costs of making and selling an item at a volume of 2,000 units per month (which represents the company's capacity): Manufacturing: Direct materials $2.00 Direct labor $3.00 Variable overhead $1.50 Fixed overhead $0.35 Selling and Administrative: Variable $3.00 Fixed $0.75 Present sales amount to $1,200 units per month. An order has been received from a customer in a foreign market for 200 units. The order would not affect current sales. Fixed costs, both manufacturing and selling and administrative, are constant within the relevant range between 1,200 units and 2,000 units. The variable selling and administrative expenses would have to be incurred on this special order as well as for all other sales. Direct labor is a variable cost. Assume the company has 50 units left over from last year which have small defects and which will have to be sold at a reduced price for scrap. The sale of these defective units will have no effect on the company's other sales. Which of the following costs is relevant in this decision?a. $6.50 variable manufacturing costb. $6.85 unit product costc. $3.00 variable selling and administrative costd. $10.60 full cost For what reasons did the basilica become an obvious choice from which to design the basic structure of a church? The first three terms of a sequence aregiven. Round to the nearest thousandth (ifnecessary).3, 6, 12, ...Find the 9th term. Read Abraham Lincolns A Fragment on Slavery. What is the main idea of this passage? Sending birthday greetings and discounts based on customer profile data is considered to be ________________________ in database-driven marketing communications. I need help in this !! Thank you !! Research on gender bias in sentencing suggests that judges do not take offenders' family circumstances into consideration when making pretrial release and sentencing decisions. Select the correct answer from each drop-down menu.The United Nations promotesx in an effort to maintain world peace and protect future generations. The tOxicimpact of nuclear weapons lasts long after its use. Nuclear bombs releasev that poisons the environment andendangers lives. Modern nuclear weapons are so powerful that they have the capacity to wipe out large cities in minutes and perhapscause the end of human civilization. Abc co issues a zero coupon bond with 5 years to maturity. investor's required rate of return is 3.25%, what is the price of the zero coupon bond issued? Can someone help me out on these geometry questions? ASAP!!!Write formal proofs the HL Theorm. Epigenome-wide association study of DNA methylation in narcolepsy: an integrated genetic and epigenetic approach A moonshiner makes the error of filling a glass jar to the brim and capping it tightly. The moonshine expands more than the glass when it warms up, in such a way that the volume increases by 0.6% (that is, V/V0 = 6 10-3) relative to the space available. Calculate the force exerted by the moonshine per square centimeter if the bulk modulus is 2.1 109 N/m2, assuming the jar does not break. Which of the following is NOT one of the main three types of driving environments Soha, kesha, and lance work together in the same office and also live in the same apartment building. they travel to their workplace using different modes of transport. arrange their transport choices according to their carbon footprint. begin with the person with the smallest footprint. Jin buys a used car from klee. jin knows that loan company has a security interest in the car but is not aware that klee has missed several payments on the loan. loan repossesses the car. jin can recover for breach of warranty from a. loan but not klee. b. neither klee nor loan. c. klee or loan. d. klee but not loan. Which stage of the lewin model of change do you think is most often overlooked? why? How many moles of Chromium is in 4.41 10^24 atoms