Internal energy and heat capacity

Today we talked about internal energy and how keeping track of the work done on or by the system and the heat transferred into or out of the system can help us follow the change in internal energy of a system. In order to relate heat transfer and temperature change, we explored the concept of heat capacity, especially the more generally applicable specific heat capacity and molar hear capacity. We'll take a closer look at some heat capacity problems on Friday and begin to look at the factors that influence heat transfer in chemical reactions.