Question

One litre of oxygen at a pressure of 1 atm, and 2 litres of nitrogen at a pressure of 0.5 atm. are introduced in the vessel of 1 litre capacity, without any change in temperature. The total pressure would be(a) 1.5 atm.(b) 0.5 atm.(c) 2.0 atm.(d) 1.0 atm.

Answer 1

Two liters of nitrogen at 0.5 atm make one liter at 1 atm. Adding one liter of oxygen at 1 atm bring the total to 2 atm in that one-liter vessel.

Answer 2

Answer:2 atm

Explanation:

For oxyge, P1×V1=P2×V2

Or 1×1=P2×100P2=1 atm-(1)

For nitrogen,P1V1=P2V2

Or 0.5×2=P2×1

Or P2=1 atm

P=P2+P2=1+1=2atm