RAJASTHAN ­ PET Rajasthan PET Solved Paper-2005

  • question_answer
    The value of critical temperature in terms of van der Waal's constant a and b is

    A)  \[1.2\,\times \,{{10}^{5}}k-cal\]

    B)  \[2.4\,\times \,{{10}^{5}}k-cal\]

    C)  \[4.8\,\times \,{{10}^{5}}k-cal\]

    D)  \[6\,\times \,{{10}^{5}}k-cal\]

    Correct Answer: A

    Solution :

     Critical temperature \[({{T}_{c}}):\]The maximum temperature below which a gas can be liquefied by pressure alone is called critical temperature and is characteristic of the gas. A gas cannot be liquified if its temperature is more than critical temperature. \[{{T}_{c}}=\frac{8a}{27\,Rb}\]


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