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By Mass Transfer No Comments

A mixture of 10% C6H6 vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around _______________ °C?

A. 21.7
B. 20
C. 27.3
D. 18.7

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