JEE Main & Advanced Physics Thermodynamical Processes Question Bank Isobaric and Isochoric Processes

  • question_answer
    A gas expands under constant pressure P from volume \[{{V}_{1}}\]to\[{{V}_{2}}\]. The work done by the gas is [CBSE PMT 1990; RPMT 2003]

    A)            \[P({{V}_{2}}-{{V}_{1}})\]       

    B)            \[P({{V}_{1}}-{{V}_{2}})\]

    C)            \[P(V_{1}^{\gamma }-V_{2}^{\gamma })\]                

    D)            \[P\frac{{{V}_{1}}{{V}_{2}}}{{{V}_{2}}-{{V}_{1}}}\]

    Correct Answer: A

    Solution :

               Work done \[=P\Delta V=P({{V}_{2}}-{{V}_{1}})\]


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