CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2000

  • question_answer
    Which of the following molecules has the largest root mean square velocity at \[\text{25}{{\,}^{\text{o}}}\text{C?}\]

    A)  \[\text{C}{{\text{O}}_{\text{2}}}\]                         

    B) \[\text{S}{{\text{O}}_{\text{2}}}\]

    C)  \[{{H}_{2}}S\]                  

    D) \[N{{H}_{3}}\]

    Correct Answer: D

    Solution :

    The largest root mean square velocity of \[\text{25}{{\,}^{\text{o}}}\text{C}\]is of\[\text{N}{{\text{H}}_{\text{3}}}\] because\[\text{N}{{\text{H}}_{\text{3}}}\]is of lowest molecular weight.


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