PHYS1001 Lecture Notes - Lecture 11: Black Body, Emissivity, Evaporative Cooler
Document Summary
We can use the term phase of matter in place of a state of matter. M is the mass of the object. C is some constant depending on the material - it is the specific heat capacity. I. e. if a material has a high c, then there will be a smaller change of temperature. A measure of the quantity of a substance. There is 6. 02 1023molecules in a mol. M: total mass of n moles of material. We substitute to get q = nc t. Where the units of c are joules * mol-1 * k-1. We can think of there being no change of temperature when there is a change of phase as the matter that changes phase is no longer a part of the system. When matter changes phase, there is no change in temperature of the matter in the original phase. The heat transfer involved in phase changes.
