# Homework Help: RMS and gas speed thing

1. Nov 28, 2007

### Nghi

1. The problem statement, all variables and given/known data

The rms speed of a sample of gas is increased by 8 percent.

(a) By how much does the gas's temperature change? (given in %)
(b) By how much does the gas's temperature change, assuming its volume is held constant? (%)

2. Relevant equations

rms = $$\sqrt{3KT/M}$$

3. The attempt at a solution

I have no idea how to solve this. I set the left side of the equation equal to 0.08, and then I got lost from there. -__-