(4-20) A theater seats 250-person. The inside design conditions are 25 °C and 50% RH, while the outside conditions are 40 °C and 40% RH. The heat gain from walls, ceiling, floor, windows, and doors is 28 kW. Calculate the followings: (a) Total heat gain due to occupants for matinee show, assuming (CLF)oc= 0.76. (b) Mass flow rate of ventilation needed. (c) Total sensible and latent heat gains. gested problems