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Manipal Medical Manipal Medical Solved Paper-2003

  • 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 :

     According to Charles law \[\frac{dP}{P}=\frac{dT}{T}\] Here:       \[dT=1{}^\circ C\] \[dP\] is change in pressure = 0.4% \[\frac{dP}{P}=\frac{0.4}{100}\] Or \[\frac{0.4}{100}=\frac{1}{T}\] So,        \[T=\frac{100}{0.4}=250{}^\circ C\]


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