1. The problem statement, all variables and given/known data The latent heat of vaporization for water is 540 kcal/kg. By how much does the entropy of 50g of water at 100oC change if the water is very slowly converted into steam at 100oC? 2. Relevant equations 3. The attempt at a solution would it be 0 heat change plus the 540? = 540 total?