1. The problem statement, all variables and given/known data Find the change in entropy when 2.00 kg of water at 100 degrees C is boiled away to steam at 100 degrees C. Give your answer in kJ/K 2. Relevant equations deltaS=Q/T Q=m*Lvaporization 3. The attempt at a solution Q=m*Lvaporization Q=2 kg * 22.6*10^5 J/kg Q = 4.52x10^6 J I'm not not sure how to find T though since it's at 100 degrees and going to 100 degrees... Thanks!