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.
Jhj said:
7 years ago
As the temperature decreases the relative humidity increases.
(4)
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)
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)
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)
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.
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.
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.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers