JEE Main & Advanced Physics Thermodynamical Processes Question Bank Topic Test - Thermodynamical Processes

  • question_answer
    From the following V-T diagram as shown in the figure. What is true about pressure?            

    A)      \[{{p}_{1}}<{{p}_{2}}\]

    B) \[{{p}_{1}}>{{p}_{2}}\]

    C)  \[{{p}_{1}}={{p}_{2}}\]

    D) Cannot predict

    Correct Answer: A

    Solution :

    [a]\[V=aT+b\]
                From standard gas equation,
                            \[p=\frac{RT}{V}=\,\frac{RT}{aT+\,b}=\,\frac{R}{a+b/T}\]
                As,       \[{{T}_{2}}>{{T}_{1}}\]   
                            \[{{p}_{2}}>{{p}_{1}}\] or \[{{p}_{1}}<{{p}_{2}}\]0


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