Humidity Charts on Chemical Engineering related Questions and Answers

Question :   What is the enthalpy change of 30oC system if the heat capacity of air at 38oC is 5 J/oC and heat capacity of water vapor at 38oC is 10 J/oC, enthalpy of vaporization is 10 J, and the humidity is 60%? 1. 14 J 2. 39 J 3. 65 J 4. 94 J Answer :   4 - 94 J