Question

Knowing what information would allow you to order gas molecules according to their velocity?

A. Pressure and temperature
B. Temperature and molecular mass
C. Pressure and volume
D. Volume and molecular mass

Answer 1

@sweetburger omg you're here! finally lol :D

Answer 2

is this question in relation to the root mean square velocity of a gas molecule by chance?!?

Answer 3

I'm not sure...I'm learning about how to solve equations involving gases

Answer 4

Here is my reasoning. I think the answer may be B., because the temperature affects how fast a gas molecule is moving and the molecular mass of gas affects how fast it will go. It can be explained by Root-mean-square speed is the measure of the speed of particles in a gas that is most convenient for problem solving within the kinetic theory of gases. It is defined as the square root of the average velocity-squared of the molecules in a gas. It is given by the formula \[Vrms = \sqrt{(3RT)/(m)}\] where r is the gas constant T is the temperature and m is the mass of the gas in kilograms per mole.

Answer 5

Ok, that makes a lot of sense. So you're sure it's B?

Answer 6

I think it should be B. I dont really agree with any of the other answer choices as they would not affect the velocity of a gas molecule.

Answer 7

Great, thank you!