A 40 g block of ice is cooled to -65°C. It is added to 569 g of water in an 69 g copper calorimeter at a temperature of 28°C. Find the final temperature. The specific heat of copper is 387 J/kg °C and of ice is 2090 J/kg °C. The latent heat of fusion of water is 3.33 x 105 J/kg and its specific heat is 4186 J/kg °C. Answer in units of °C.

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above