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MGIMS WARDHA MGIMS WARDHA Solved Paper-2013

  • question_answer
    A 1 L flask contains 32 g\[{{O}_{2}}\]gas at\[27{}^\circ C\]. What mass of\[{{O}_{2}}\]must be released to reduce the pressure in the flask to 12.315 atm?

    A)  8 g                                        

    B)  16 g

    C)  24 g                                      

    D)  32 g

    Correct Answer: B

    Solution :

                    \[pV=nRT=\frac{w}{m}Rt\] \[w=\frac{pVm}{RT}=\frac{12.315\times 1\times 32}{0.0821\times 300}=16g\] \[{{O}_{2}}\]to be released\[=32-16=16g\]


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