1.

What is the enthalpy change of 10°C system if the heat capacity of air at 20°C is 5 J/°C and heat capacity of water vapor at 20°C is 15 J/°C, enthalpy of vaporization is 10 J, and the humidity is 40%?

A. 58 J
B. 84 J
C. 114 J
D. 135 J
Answer» D. 135 J


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