JEE Main & Advanced Chemistry States of Matter Question Bank Ideal gas equation and Related gas laws

  • question_answer The maximum number of molecules is present in [CBSE PMT 2004]

    A)                 0.5 g of \[{{H}_{2}}\] gas              

    B)                 10 g of \[{{O}_{2}}\] gas

    C)                 15 L of \[{{H}_{2}}\] gas at STP   

    D)                 5 L of \[{{N}_{2}}\] gas at STP

    Correct Answer: C

    Solution :

               In \[22.4l\] of \[{{H}_{2}}\] maximum number of molecules \[=6.023\times {{10}^{23}}\]                    In \[1l\] of \[{{H}_{2}}\] maximum number of molecules \[=\frac{6.023\times {{10}^{23}}}{22.4}\]                                 In \[15l\]of \[{{H}_{2}}\] maximum number of molecules \[=\frac{6.023\times {{10}^{23}}}{22.4}\times 15\] \[=4.03\times {{10}^{23}}\] molecules.


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