(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A system expands by 0.67 m^3 at a constant pressure of 105 kPa. Find the heat of the system if its internal energy decreases by 1710J.

2. Relevant equations

Since P=constant:

deltaU=Q-W

W=PdeltaV

3. The attempt at a solution

I tried plugging in the numbers to the equation for W and then plugging that value into the first equation to solve for U, but I didn't get the correct answer and I'm not sure where I went wrong.

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# Homework Help: Finding heat of a system

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