R-11 has the highest critical point temperature.

In a pressure enthalpy chart, the space between the saturated liquid line and saturated vapour line, represents sub-cooled liquid region.

The emissivity of a polished silver body is __________ as compared to black body.

The final relative humidity of the air during cooling and dehumidification is generally __________ than that of entering air.

An infinite parallel planes with emissivities e₁ and e₂, the interchange factor for radiation from surface 1 to surface 2 is given by