Chemical Engineering - Mass Transfer - Discussion
Discussion Forum : Mass Transfer - Section 1 (Q.No. 17)
17.
Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a
Discussion:
9 comments Page 1 of 1.
Shan Rana said:
1 decade ago
The Dew Point temperature can be measured by filling a metal can with water and some ice cubes. Stir by a thermometer and watch the outside of the can. When the vapor in the air starts to condensate on the outside of the can, the temperature on the thermometer is pretty close to the dew point of the actual air.
Rajendra Pal said:
6 years ago
RH= actual moisture content divide by capacity to be content in to hundred. Holding capacity vairy according to temperature at low temperature less holding capacity at higher temp higher holding capacity.
Avaneesh said:
9 years ago
Temperature decrease of gas then vapour pressures also decrease.
Relative humidity= partial pressure of vapour in water air mixture /vapour pressure of pure water.
Relative humidity= partial pressure of vapour in water air mixture /vapour pressure of pure water.
(1)
Shree said:
3 years ago
Temperature decrease of gas then vapour pressures also decrease.
Relative humidity = partial pressure of vapour in water air mixture/vapour pressure of pure water.
Relative humidity = partial pressure of vapour in water air mixture/vapour pressure of pure water.
(4)
Mukesh said:
1 decade ago
Dew point and absolute humidity remains constant during constant pressure heating and cooling. Wet bulb temp. Decrease for cooling and increases for heating.
(1)
Prithwijit said:
8 years ago
Warm air can hold more water vapour than cold air. Therefore with decrease of temperature relative humidity increases and vice versa.
(1)
Surya said:
1 decade ago
As the temperature decreases the relative humidity increases.
Yogesh said:
8 years ago
As the temperature decreases the relative humidity increases.
Jhj said:
7 years ago
As the temperature decreases the relative humidity increases.
(4)
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