Atank of constant volume 50 m^3 initialy containing air at temp 10c and at pressure 253 kpa was being charged wit air at 5c by a compressor until the pressure was equal to 2.8 mpa. the work needed to compressed air was 35mj. during the process 25mj of heat flowed away frinm the tank to the atmosphere. assuming air to be ideal, diatomic gas of individual gas constant equal to 287 j/kgk. find the amount of air transferred to the tank and the final temp. of the tank. cv = 1/(k-1)r, cp = k/(k-1)r and k=1.4.