458. Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.
461. When the __________ the relative humidity of air decreases, despite an increase in the absolute humidity.
462. With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux
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