Question

A dry gas occupies 125cm3 at STP. If the same
gas is collected over water at 27°C at a total
pressure of 750 Torr, the volume occupied by
the gas is (Given:aqueous tension of water at
27°C is 25 Torr.)
1) 144.0 cm3
2) 125cm3
3) 115.0 cm
4) 155cm
3
17:1​

Answer 1

Explanation:

i cant understand your question

Answer 2

Answer:

VE=144 Cm3

Explanation:

For dry gas V1=125Cm3=0.125lit

p1=1atm(STP)

T1=273

gas collected over water TE=300k

Pt=750 Torr

Pdrygas=750-25=725torr=725÷760atm=0.9539=P2

there fore P1V1/TE=P2V2/T2

V2=P1×V1×T2/T1×P2

1×0.125×300/273×0.9539

V2=0.144lit

or VE=144Cm3