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  4. One-litre of oxygen at a pressure of 1 textatm and two-litre of nitrogen at a pressure of 0.5 textatm , are introduced into a vessel of volume one-litre. If there is no change in temperature, the final pressure of the mixture of the gases [. in atm]. is

Q. One-litre of oxygen at a pressure of and two-litre of nitrogen at a pressure of , are introduced into a vessel of volume one-litre. If there is no change in temperature, the final pressure of the mixture of the gases in is

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Solution:

Ideal gas equation is given by
...(i)
For oxygen, atm, L,
Therefore, Eq. (i) becomes


For nitrogen 0.5 atm, 2 L,


For mixture of gas

Here,

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