Find the molar specific heat for each gas.

[MaiteB]

Homework Statement

A mixture of two ideal gases, the first one atomic and the second two atomic are put in normal conditions in a calorimeter with volume 1 liter hermetically closed. After it is given 10J thermal energy the mixture temperature is grown 14.2 K. Find the molar specific heat for each gas.

Homework Equations

pV=nRT

The Attempt at a Solution

I found the n=0.419 with that formula taking the pressure 1atm).What should I do then? What is molar specific heat? I think it is delta U, but how does it relate to to the 10J heat?

 

[theodoros.mihos]

If you have one atomic gas then n=0.042. In classical statistic mechanics molar specific heat for gasses is:
$$ C_v = \left(\frac{\partial{U}}{\partial{T}}\right)_v = \frac{3}{2}\frac{f}{2}R $$
where f is the number of freedom degrees, so don't understand what is the question.