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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2004

  • question_answer
    If on heating liquid through \[80{}^\circ C\],the mass expelled is (1/100) the of mass still remaining,         the coefficient of apparent expansion of liquid is:            

    A)              \[1.25\times {{10}^{-4}}/{}^\circ C\]          

    B)              \[12.5\times {{10}^{-4}}/{}^\circ C\]

    C)              \[152\times {{10}^{-5}}/{}^\circ C\]            

    D)              none of these

    Correct Answer: A

    Solution :

                From relation \[\text{apparent=}\frac{\text{mass}\,\text{expelled}}{\text{mass}\,\text{remained }\!\!\times\!\!\text{ t}}\] \[=\frac{\frac{x}{100}}{x\times 80}=\frac{1}{8000}=1.25\times {{10}^{-4}}/{}^\circ C\]


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