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

JEE Main & Advanced Physics Thermodynamical Processes Question Bank Graphical Questions

  • question_answer
    An ideal gas of mass m in a state A goes to another state B via three different processes as shown in figure. If \[{{Q}_{1}},\,{{Q}_{2}}\] and \[{{Q}_{3}}\] denote the heat absorbed by the gas along the three paths, then                                                                          [MP PET 1992]

    A)            \[{{Q}_{1}}<{{Q}_{2}}<{{Q}_{3}}\]

    B)            \[{{Q}_{1}}<{{Q}_{2}}={{Q}_{3}}\]

    C)            \[{{Q}_{1}}={{Q}_{2}}>{{Q}_{3}}\]

    D)            \[{{Q}_{1}}>{{Q}_{2}}>{{Q}_{3}}\]

    Correct Answer: A

    Solution :

                       Initial and final states are same in all the process. Hence D U = 0; in each case. By FLOT; DQ = DW = Area enclosed by curve with volume axis. \[\because \] (Area)1 < (Area)2 < (Area)1 Þ Q1 < Q2 < Q3­ .


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