JCECE Engineering JCECE Engineering Solved Paper-2010

  • question_answer
    The number of moles of\[{{H}_{2}}\]in\[0.224\] hydrogen gas at\[STP\,\,(273\,\,K,\,\,1\,\,atm)\], is

    A) \[0.1\]                                  

    B)  \[0.01\]

    C) \[0.001\]                             

    D)  \[1\]

    Correct Answer: B

    Solution :

    22.\[22.4\,\,L\]of\[{{H}_{2}}=1\,\,mol\,\,{{H}_{2}}\] \[0.224\,\,L\]of\[{{H}_{2}}=\frac{1}{22.4}\times 0.224\,\,mol\] \[=0.01\,\,mol\,\,of\,\,{{H}_{2}}\]


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