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The gas in vessel is subjected to a pressure of 20 atmosphere at a temperature 27°C. The pressure of the gas in a vessel after one half of the gas is released from the vessel and the temperature of the remainder is raised by 50°C is

(a)  8.5 atm                               (b)  10.8 atm

(c)   11.7 atm                            (d) 17 atm

Answer-c

(6)

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