ex. A tmospheric air is circulated through an air heating system, where the temperature of air is increased from (7.2C) to (21.2 C) any pressure Loss. If the hourly consumption of warm air at (21.2 C) is (850 m), calculate how much heat per hour must be transferred to the air, And what will be the without change in entropy of air circulated per hour KJ KJ [ Take, Cp = 1 k k / C = 0.74 KATE ] kyk