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7 March, 15:46

If 100 J of heat is added to a system so that the final temperature of the system is 400 K, what is the change in entropy of the system? a) - 0.25 J/K b) - 2.5 J/K c) - 1 J/K d) - 4 J/K

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  1. 7 March, 15:58
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    0.25 J/K

    Explanation:

    Given data in given question

    heat (Q) = 100 J

    temperature (T) = 400 K

    to find out

    the change in entropy of the given system

    Solution

    we use the entropy change equation here i. e

    ΔS = ΔQ / T ... a

    Now we put the value of heat (Q) and Temperature (T) in equation a

    ΔS is the entropy change, Q is heat and T is the temperature,

    so that

    ΔS = 100/400 J/K

    ΔS = 0.25 J/K
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