JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2010

  • question_answer
        How many moles of nitrogen are needed to produce 8.2 moles of ammonia by reaction with hydrogen?

    A)  2.1                                        

    B)  3.1

    C)  3.2                                        

    D)  4.1

    Correct Answer: D

    Solution :

                    The balanced chemical equation is \[\underset{\begin{smallmatrix}  1\,mol \\  \,\,\,\,? \end{smallmatrix}}{\mathop{{{N}_{2}}}}\,+3{{H}_{2}}\xrightarrow[{}]{{}}\underset{\begin{smallmatrix}  2\,mol \\  8.2\,mol \end{smallmatrix}}{\mathop{2N{{H}_{3}}}}\,\] 2 moles of\[N{{H}_{3}}\]are produced from\[{{N}_{2}}=1\]mol \[\therefore \]8.2 moles of\[N{{H}_{3}}\]will be produced from\[{{N}_{2}}\]                 \[=\frac{1}{2}\times 8.2\] \[=4.1\text{ }mol\]


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