# Another Thermodynamic Problem

1. Nov 8, 2008

### akan

1. The problem statement, all variables and given/known data
a) By how much does the temperature of an ideal monatomic gas change in an adiabatic process in which 2.0 kJ of work are done on each mole of gas?
b) By how much does the temperature of an ideal diatomic gas (with molecular rotation but no vibration) change in an adiabatic process in which 2.0 kJ of work are done on each mole of gas?

2. Relevant equations
Q = 0
dU = -W
W = (p_1 V_1 - p_2 V_2) / (y - 1)
pV^y = const.
TV^(y-1) = const.

3. The attempt at a solution

2. Nov 8, 2008

Why is pV^y = const and TV^(y-1) = const relevant? Is this a polytropic process?

3. Nov 8, 2008

Also. What class is this for? Is it a physics course or a thermodynamics course? There are different approaches.

4. Nov 8, 2008

### akan

This is for an introductory physics course, and the book defines four different types of processes: Isothermal, Isometric, Isobaric, and Adiabatic (no heat transfer). I think I am supposed to use one of those, and it would be adiabatic since the problem mentions it.

5. Nov 19, 2008

### akan

I have managed to solve this problem. Thank you.