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11th Class Physics Thermodynamical Processes Question Bank Critical Thinking

  • question_answer
    To calculate the amount of work done in joules during reversible isothermal expansion of an ideal gas, the volume must be expressed in    [KCET (Med.) 2001]

    A)                 \[{{m}^{3}}\] only           

    B)                 \[d{{m}^{3}}\] only

    C)                 \[c{{m}^{3}}\] only         

    D)                 Any one of them

    Correct Answer: D

    Solution :

              \[w=2.303\,RT\,\log \frac{{{V}_{2}}}{{{V}_{1}}}.\]As it involves the ratio \[\frac{{{V}_{2}}}{{{V}_{1}}}\], volume can be used in any units. (R should be in joules).


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