WB JEE Medical WB JEE Medical Solved Paper-2013

  • question_answer
    The amount of heat energy required to raise the temperature of 1 g of helium at NTP, from \[{{T}_{1}}K\]to \[{{T}_{2}}K\]is

    A)  \[\frac{3}{8}{{N}_{a}}{{K}_{B}}({{T}_{2}}-{{T}_{1}})\]

    B)  \[\frac{3}{2}{{N}_{a}}{{K}_{B}}({{T}_{2}}-{{T}_{1}})\]

    C)  \[\frac{3}{4}{{N}_{a}}{{K}_{B}}({{T}_{2}}-{{T}_{1}})\]

    D)  \[\frac{3}{4}{{N}_{a}}{{K}_{B}}\left( \frac{{{T}_{2}}}{{{T}_{1}}} \right)\]

    Correct Answer: A

    Solution :

     We know that \[Q=\frac{F}{2}nR\,\Delta \Tau \] \[\therefore \] Amount of heat required, \[Q=\frac{3}{2}\times \frac{1}{4}\times {{K}_{B}}{{N}_{B}}\Delta \Tau \] \[Q=\frac{3}{2}\times \frac{1}{4}\times {{K}_{B}}{{N}_{B}}\Delta \Tau \]


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