An open pan 20 cm in diameter and 10 cm deep contains water at 25◦C and is exposed to atmospheric air at 25◦C and 50 percent relative humidity. Calculate the evaporation rate of water in grams per hour.

Calculate (a) the specific volume, (b) Enthalpy, and (c) absolute humidity at 40 udaraC and relative humidity at 49%, at a barometric pressure of 740 mm Hg. (a) Specific volume =    m3 / Kg.(b) Enthalpy =     (kJ / kg air)(c) Absolute humidity =    (kg water / kg air)

The air in a room has a dry-bulb temperature of 90 F and a wet-bulb temperature of 60 F. Assume a pressure of 1 atm total pressure. In the question that follows, select the answer that is closest to the true value. What is the dew point temperature in units of F ?

A room contains 50 kg of dry air and 0.8 kg of water vapor at 25°C and 1 atm total pressure. The relative humidity of air in the room is vaplanmadı Lütfen birini seçin: inden miş а. 35% ju işaretle b. 60% C. 55% d. 80% e. 75% Sonraki sayfa