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74. A vessel is filled with an ideal gas at a pressure of 10 atmospheres and temperature

27°C. Half of the mass of the gas is removed from the vessel and temperature of the remaining gas is increased to 87°C. Then the pressure of the gas in the vessel will be

(a)   5 atm                                      (b)   6 atm

(c)   7 atm                                      (d)   8 atm

Answer-b

(5)

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