Mass Transfer
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

Higher wet bulb temperature
Higher absolute (specific) humidity
Higher dew point
Higher relative humidity

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Mass Transfer
Which of the following processes is not an example of adsorption applied to gaseous separations?

Recovery of valuable solvent vapors from dilute mixture with air and other gases
Decolouration of yellow glycerene
Dehumidification of air and gas
Removal of objectionable odour and impurities from industrial gases

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Mass Transfer
A 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is

1500
1000
2000
2500

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