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MGIMS WARDHA MGIMS WARDHA Solved Paper-2013

  • question_answer
    1 mol of\[{{O}_{2}}\]and\[x\]mol of Ne in a 10 L flask at constant temperature exert a pressure of 10 atm. If partial pressure of\[{{O}_{2}}\]is 2 atm, moles of Ne in the mixture is

    A)  1                                            

    B)  2

    C)  3                                            

    D)  4

    Correct Answer: D

    Solution :

                    \[{{p}_{{{O}_{2}}}}={{p}_{total}}.{{x}_{{{O}_{2}}}}\] \[{{x}_{{{O}_{2}}}}=\frac{1}{1+x}\] \[{{p}_{{{O}_{2}}}}=2=10\times \frac{1}{1+x}\]or\[10=2+2x\] \[x=8/2=4\,mol\]


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