Home
Class 12
CHEMISTRY
To an evacuated vessel with movable pist...

To an evacuated vessel with movable piston under external pressure of of He and of an unknown compound (vapour pressure 0.68 atm at `0^(@)`C) are introduced. Considering the ideal behaviour, the volume (in litre) of the gases at `0^(@)`C is close to:

Text Solution

Verified by Experts

The correct Answer is:
7
Since, the external pressure is 1.0 atm, the gas pressure is also 1.0 atm as piston is movable. Out of this 1.0 atm partial pressure due to unknown compound is 0.68 atm.
Therefore, partial pressure of He `= 1.00 - 0.68 = 0.32` atm
`rArr` Volume = `= (n(He)RT)/(p(He)) = (0.1 xx 0.082 xx 273)/(0.32) = 7L rArr` Volume of container = volume of He.
Promotional Banner

Similar Questions

Explore conceptually related problems

To an evacuated vessel with movable piston under external pressure of 1 atm 0.1 mole of He and 1.0 mole of an unknown compound vapour pressure 0.68 atm at 0^(@)C are introduced Considering the ideal gas behaviour the total volume (in litre) of the gases at 0^(@)C is close to .

One litre of oxygen at a pressure of 1 atm and two litres of nitrogen at a pressure of 0.5 atm are introduced into a vessel of volume 1 litre. If there is no change in temperature, the final pressure of the mixture of gas (in atm) is