1. The problem statement, all variables and given/known data A container contains a given mass of ice and a given mass of water both at 0 degrees Celsius. A given mass of aluminum is heated up to some temperature and submerged in the water-ice mixture. No heat enters or leaves the container. Given the specific heat of water and Aluminum and the energy it takes to melt a kilogram of ice, find the final temperature of the solution. If we let the container absorb some heat and it has a given mass and a given specific heat, what will be the final temperature of the solution. 2. Relevant equations Q = C*M*T_change 3. The attempt at a solution I have solved the first part of the question. Just two equations in the unknown (final temperature) then solved for it. The second part has me stumped though. It seems like I'd need to know the initial temperature of the container to solve this one. But no temperature was given for the container. Am I misunderstanding the question or overlooking something subtle? Or should I just assume the container starts at 0 degrees Celsius?