Dew point of an air-water vapor mixture

1.	Dew point of an air-water vapor mixture
A.	decreases with decrease in pressure.
B.	at constant humidity & total pressure is fixed.
C.	corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve.
D.	all 'a', 'b' & 'c'.
Answer» E.

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Dew point of an air-water vapor mixture

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