This example provides a nice lesson on utilizing the simple heat transfer equation. It also makes one think about what coefficient of heat to utilize. One given coefficient of heat is a value under constant pressure conditions and another coefficient of heat is a value under constant volume conditions.
We will of course utilize the ideal gas law once again and we must be sure to pay continual attention to the always present pitfall of units.
I hope this makes sense, do not hesitate to ask for further clarification in the comments below. Also feel free to send in questions that you would like solved.
Mike Grossman, P. Eng.