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CMC Medical CMC-Medical VELLORE Solved Paper-2013

  • question_answer
    A certain process releases 64.0 kJ of heat which is transferred to the surroundings at a constant pressure and a constant temperature of 300 K. For this process\[\Delta {{S}_{surr}}\]is

    A)  \[64.0\text{ }KJ\]                           

    B)  \[-\,64.0\text{ }KJ\]

    C)  \[-\,213\,J{{K}^{-1}}\]                  

    D)  \[213\,J{{K}^{-1}}\]

    Correct Answer: D

    Solution :

                    \[{{q}_{surr}}=-{{q}_{sys.}}=64\,kJ\] \[\Delta {{S}_{surr.}}=\frac{{{q}_{surr}}}{T}=\frac{640000}{300}\]          \[=213\,J{{K}^{-1}}\]


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