A 65.4.g copper cylinder at the temperature of 99.5 0C is placed into an aluminum cup with cold water at  18.0 0C. After reaching the thermal equilibrium the final temperature reaches 24.5 0C. How much water is in  the cup if the mass of the aluminum cup is 45.7 g?  Specific heat of aluminum is 0.215 cal/g 0C and the one of copper is 0.0923 cal/g 0C.

Water is placed into an iron container along with an ice cube. They are thermally isolated.The iron container has a mass of 620. g and is initially at 81.0 degrees Celsius. The water has a mass of 190. g and is initially at 29.0 degrees Celsius. The ice cube has a mass of 75.0 g and is initially at -12.1 degrees Celsius.What is the heat required to bring the iron container AND the water down to 0 degrees Celsius?

50.0 g of ice at -20.0 oC is placed in a glass containing 100 g of liquid water at 10.0 oC. Assume that there is no heat transfer from the water to the glass or to the environment. How much ice melted?

There are 4 metals and the value of their specific heat is listed as . Metal A = 0. 22 calorie per gram per degree Celsius.                                                                                                                             Metal B = 0.18 calorie per gram per degree Celsius.                                                                                                                            Metal C = 0.39 calorie per gram per degree Celsius.                                                                                                                           Metal D  = 0.11 Calorie per gram per degree Celsius. Which metal is the best choice fro frying pan?   A. Metal A   B. Metal D   C. Metal B   D. Metal C