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CMC Medical CMC-Medical VELLORE Solved Paper-2013

  • question_answer
    If the pressure of a gas contained in a vessel is increased by 0.4%. When heated through \[1{}^\circ C,\] the initial temperature had been

    A)  2500 K                 

    B)  250 K  

    C)  \[250{}^\circ C\]                             

    D)  \[25{}^\circ C\]

    Correct Answer: C

    Solution :

                    \[\frac{dp}{p}=\frac{dT}{T}\] \[dT=1{}^\circ C\] dP is change in pressure = 0.4 \[\frac{dp}{p}=\frac{0.4}{100}\] \[=\frac{0.4}{100}=\frac{1}{T}\] \[T=\frac{100}{0.4}=250{}^\circ C\]


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