A vessel is filled with an ideal gas at ...

A vessel is filled with an ideal gas at a pressure of 20 atm and is at a temperature of `27@C`. One-half of the mass is removed from the vessel and the temperature of the remaining gas is increased to `87^@C` .At this temperature the pressure of the gas will be

80 atm

8.3 atm

12 atm

0.12 atm

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