GATE CH · 2022 · CH
Question 57: Mass Transfer
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Question 57
CHNAT2 marksNeeds review
The dry-bulb temperature of air in a room is 30 °C. The Antoine equation for water is given as
where
is the temperature in K and
is the saturation vapor pressure in bar. The latent heat of vaporization of water is 2000 kJ kg
, the humid heat is 1.0 kJ kg
K
, and the molecular weights of air and water are 28 kg kmol
and 18 kg kmol
, respectively. If the absolute humidity of air is
kg moisture per kg dry air, then for a wet-bulb depression of 9 °C,
________________ (rounded off to one decimal place).Log in to check the answer
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2022CH
GATE CH 2022 · Paper 1
Chemical Engineering · Original paper archive
- Section
- Chemical Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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