a.) What is the entropy change of a 12.8 g ice cube that melts completely in a bucket of water whose temperature is just above the freezing point of water?
b.) What is the entropy change of a 18.1 g spoonful of water that evaporates completely on a hot plate whose temperature is slightly above the boiling point of water
The Attempt at a Solution
deltaS=m*c*ln(Tf/Ti) but i dont know what Tf or Ti should be