Part A

joules to condense 121g of steam at 100 degrees celsius and to cool the liquid to 20.0 degrees celsius.

Part B

joules needed to melt a 519g ice sculpture at 0 degrees celsius and to warm the liquid to 20 degrees celsius.

Part C

kilojoules released when 83.0g of steam condenses at 100 degrees celsius, the liquid cools to 0 degrees celsius, and freezes.

Part D

joules to warm 44.0 mal of water (density=1.00g/mL) from 40.0 degrees celsius to 100 degrees celsius and vaporize it at 100 degrees celsius.