Answer / murthy

dew point temp is temp at which the first dew will be
formed if compressed. air dew point is defined because of
dew formation due to C02 & water which forms dry ice ,not
because of air liquefication.air with dew point -40C means
it is temperature upto which there will be no dew formation
upto this temp if pressure is increased even upto critical
pressure

Answer / vaibhav v t

-40C dew point in air drying means air will be condensed
at -40 deg.c only.-40 C means good dry air.

Answer / ramana reddy

at -40c the air will become to liquified. above this temp.
air in vapor state.

Answer / samy

Air dew point is -40C because of decC and decF are meet in -40

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