A mixture the neon gas and also argon gas is present in a container (container A). There room equal amounts of both gases in the container. A little pinhole is created in the container, allowing the gases come effuse into an north container (container B). The effusion time is an extremely brief, and also the pinhole is at some point plugged, leading to a mixture that both gases in both containers.

You are watching: Which of the following will have the slowest rate of diffusion at a given temperature?


Correct answer:

The partial push for argon is greater than the partial pressure for neon in container A


Explanation:

The price of effusion for two gases have the right to be compared to one one more using the following equation:

*

Here, the effusion rates are inversely proportional come the square root of the molecular masses of the gases in question. Due to the fact that the relationship is to the square roots of the molecule masses, we will certainly not observe a 2:1 ratio of effusion because that neon contrasted to argon.

We will, however, view that an ext neon effuses the end of container A contrasted to the lot of argon since neon is the lighter gas and will thus have actually a quicker effusion rate. Together a result, there will be more argon 보다 neon in container A ~ the pinhole is plugged. This results in argon having actually a larger partial push than neon in container A.


Report one Error

Example question #1 : Effusion


A glass box holds equal quantities of hydrogen, nitrogen, oxygen, and also bromine. The gases are enabled to leave the container with a tiny hole. Which gas will leave the hole the fastest?


Possible Answers:

Nitrogen


Oxygen


Hydrogen


Bromine


They all exit at the exact same rate since the temperature is constant


Correct answer:

Hydrogen


Explanation:

At a certain temperature, the mean kinetic power of every gaseous molecule is equal. Because hydrogen gas has actually the shortest mass the end of these gases, that will have the greatest average velocity. This means that that will exit out of the tiny hole in ~ a rate much faster than the various other gases. Vice versa, bromine, which has actually the many mass contrasted to the various other gases, will departure the hole the slowest.

This connection is mathematically represented in Graham"s law:

*

As the mass increases, the rate of effusion decreases.


Report an Error

Example question #1 : Solutions and States Of matter


Which of the complying with gases will have actually the greatest rate that effusion?


Possible Answers:

Oxygen


Sulfur dioxide


Nitrogen


Carbon dioxide


Helium


Correct answer:

Helium


Explanation:

The price of effusion because that a gas is inversely proportional come the square-root the its molecule mass (Graham"s Law).

*

The gas v the shortest molecular weight will effuse the fastest.

Oxygen:

*

Nitrogen:

*

Carbon dioxide:

*

Sulfur dioxide:

*

Helium:

*

The lightest, and therefore fastest, gas is helium.


Report an Error

Example question #1 : Effusion


Molecule A has actually twice the fixed of molecule B. A sample of each molecule is released into separate, the same containers. Which link will have actually a greater rate the diffusion?


Possible Answers:

Molecule A


There is not sufficient information to determine relative rates of diffusion


They will have identical prices of diffusion


Molecule B


Molecule A would have actually a much faster initial rate; both molecules would certainly reach an equal last rate


Correct answer:

Molecule B


Explanation:

According come Graham"s law, the rate of diffusion that a gas molecule is inversely proportional come the root square of the molecule"s mass. Because molecule B has a smaller sized mass than molecule A, it will have actually a higher rate that diffusion.

 

*

*

*


*


*



*


Correct answer:


Explanation:

We deserve to compare the effusion prices of these gases using the complying with equation.

 

*

By calling neon "gas 1" and also argon "gas 2," we have the right to compare the effusion rates of the 2 gases by plugging their molecular masses right into the equation.

*

This relationship is same to the rate of neon effusion over the rate of argon effusion, offering the ratio of neon atom to argon atom in container B.

See more: What Term Did Historians Apply To Reagan’S Efforts On The Economic Front? ?

*

As a result, 141 atom of neon gas will effuse out of the pinhole for every 100 argon gas atoms. Store in mind the the heavier gas will effuse in ~ a slower rate than the lighter gas; thus, us would mean there to be an ext neon 보다 argon in container B.



Report an Error

Let united state assume the the two compounds kind a precipitate in the tube 6cm come the left the the best cotton ball. What is the molar mass of the mystery compound?