please solve this. And please show all the steps. (practice problem)

(20 points) Air at 35C and 97% relative humidity is to be cooled isobarically to 18C and fed into a plant area at a rate of 480m3/min. (a) Calculate the rate at which water condenses. (b) Calculate the cooling requirements (in tons), assuming that the enthalpy of water vapor is that of saturated steam at the same temperature, and the enthalpy of dry air is given by the expression: H(kJ/mol)=0.0291[T(C)25]