The heat of vaporization of water at 1000C is 2.26 kJ/g; at 370C it is 2.41kJ/g.

The heat of vaporization of water at 100°C is 2.26 kJ/g; at 37°C (body temperature), it is 2.41 kJ/g. 

a. Convert the latter value to standard molar heat of vaporization, ΔH°vap at 37°C.

b. Why is the heat of vaporization greater at 37°C than at 100°C?

The heat of vaporization of water is . How do you calculate the molar heat of vaporization  of water?

The heat of vaporization of water at 100°C is 40.66 kJ/mol. Calculate the quantity of heat that is absorbed/released when 9.00 g of steam condenses to liquid water at 100°C.