A mixture of 10% CH 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 mixture of 10% CH vapour in air at 25°C and 750 mm Hg has a dew poi

1.	A mixture of 10% CH 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
Answer» E.

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A mixture of 10% CH 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.

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