How does temperature affect the average velocity of particles in a gas?

[Runaway]

Homework Statement

A sample of an ideal gas is in a tank of constant volume. The sample absorbs heat energy so that its temperature changes from
304 K to 608 K.
If v₁ is the average speed of the gas
molecules before the absorption of heat and
v₂ their average speed after the absorption of
heat, what is the ratio
v₂/v₁ ?

Homework Equations

PV=nRT

The Attempt at a Solution

I thought that the answer would be 2 because temperature is in effect the average velocity of the molecules in the gas, and the temperature doubles, so therefore the average velocity would double making V₂/V₁=2 but the online assignment said that answer was wrong

 

[ehild]

The Attempt at a Solution

I thought that the answer would be 2 because temperature is in effect the average velocity of the molecules in the gas,

Why do you think so? How much is the average velocity of the molecules in the gas ?

ehild

 

[Beer-monster]

It may help to know that temperature is proportional to the kinetic energy of the molecules, not directly proportional to velocity.