87) The process of removing moisture from the air, without change in its dry bulb temperature, is called dehumidification.

88) The specific humidity during dehumidification process

89) Which of the following refrigerant has the lowest freezing point?

90) For a white body, absorptivity (? ) = 0, reflectivity (?) = 1 and transmittivity (?) = 0.

91) Which of the following refrigerant has the maximum ozone depletion potential in the stratophere?