A2 litre vessel is filled with air at 50...

A2 litre vessel is filled with air at `50^(@)C` and pressure of 3 atm. The temperature is now raised to `200^(@)C` A valve is now opened so that the pressure inside drops to one atm What fraction of the total number of moles, inside escaped on openig the valve ? Assume no change in the volume of the container .

7.7

9.9

8.9

0.77

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