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

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

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

197) R-11 has the highest critical point temperature.

198) The ratio of heat extracted in the refrigerator to the workdone on the refrigerant is called