2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Thermodynamical Processes

JEE Main & Advanced Physics Thermodynamical Processes Question Bank Isothermal Process

  • question_answer
    In an isothermal process the volume of an ideal gas is halved. One can say that                   [MP PMT 2004]

    A)            Internal energy of the system decreases

    B)            Work done by the gas is positive

    C)            Work done by the gas is negative

    D)            Internal energy of the system increases

    Correct Answer: C

    Solution :

                       For isothermal process                    \[dU=0\]and work done \[=dW=P({{V}_{2}}-{{V}_{1}})\]            \[\because \ {{V}_{2}}=\frac{{{V}_{1}}}{2}=\frac{V}{2}\]\ \[dW=-\frac{PV}{2}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner