Question

How much heat is evolved in converting 1.00 mol of steam at 150.0 ∘C to ice at -45.0 ∘C? The heat capacity of steam is 2.01 J/(g⋅∘C) and of ice is 2.09 J/(g⋅∘C).Express your answer in units of kilojoules. Assume the system is at atmospheric pressure.

Answer 1

57.7 kJ of heat is released when 1.00 mol of 140.0 degree C of steam is converted to -55.0 degree C of ice.