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

JEE Main & Advanced Physics Thermodynamical Processes Question Bank First Law of Thermodynamics

  • question_answer
    In a given process for an ideal gas, \[dW=0\]and \[dQ<0.\] Then for the gas                         [IIT-JEE (Screening) 2001]

    A)            The temperature will decrease

    B)            The volume will increase

    C)            The pressure will remain constant

    D)            The temperature will increase

    Correct Answer: A

    Solution :

                       From FLOT Þ \[dU=dQ-dW\Rightarrow dU=dQ(<0)\]   \[(\because \ \ dW=0)\] \[\Rightarrow dU<0\] So temperature will decrease.


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