1. The problem statement, all variables and given/known data In each case, the following are mixed in a perfect calorimeter with no heat lost or gained from the system. Find the final temp in each case. 12.5 g of steam at 100C with 344 g of water at 22.2C. 2. Relevant equations Q=Mc(Tfinal-Tinitial) M is the mass in kg C is the specific heat given by whatever substance we are dealing with And the parantheses is the change in temperature 3. The attempt at a solution So I didn't really know where to start with this problem I realize that one of the substances is going to undergo a phase change but am unsure how to find which one does it. If I could help with that I believe I could calculate the final temperature.