Q.

10 lits of an air sample with relative humidity 0.6 is compressed to 5 litres at same temperature. What is the partial pressure of the water vapour in the compressed air, if the pressure of saturated water vapour at that temperature is 2.4 K Pa

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a

1.2 KPa

b

2.4 Kpa

c

1.8 KPa

d

3.6 KPa

answer is B.

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Detailed Solution

R.H.=0.6=PH2OV.P×100PH2O=0.6×2.4=1.44kPa

on making volume half, PH2O should double,

PH2O=2.4kPa(limiting value)

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