Question

1. Dew point temperature (^oC)
2. Molal humidity
3. Absolute humidity
4. Molar composition of air in mole fractions

Answer 1

Dew Point Temperaturs: kimidification and dehumidi fication process the wetez reposs are remaned of added There is a limit to assition of water refer after which the mixture vecomes setureted. a reper-gas cooling quel by Top. Dew point temperature in the tempereture at which the rapes-gas mittene recomes saturated cooling. It means on mixture there is a point at which the sait une is selheted. At the dew point, the partial pressure of water reper present in the mixture becomes to refer pressure of water. Il es denoted Molal humidity: Humidity means the amount of water reper in dry an. It can se expressed in mass or mall. model humicuity is the retio of number of moles of wale refer to the number of moles of dry cir. by r = moles of water refor moles of dry air It is represented

Molel pressin. humidity can be expressed in terms of Y = Pozo whne, boo P-Pro the Absolute humidity: - partial pressure of water repor P Tesel pressure Absoule humidity ratio of kg of meistne (weter- rapor) to the Kg. of dry air. It is represented Y Y' = kg. of water raper by kg. of dry art Molar Composition of air in modo fractions: Composition can be expressed in male retio mole fraction. The relationship between mao retioantal mele faction is Х ItX kelne x Composition in male paction X - Composition in male retiss