For a spontaneous process at all conditions of temperature which of the following is true?

For a spontaneous process at all conditions of temperature which of the following is true?

  1. A

    ΔS positive and ΔH positive 

  2. B

    ΔS positive and ΔH negative 

  3. C

    ΔS negative and ΔH positive 

  4. D

    ΔS negative and ΔH negative 

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    Solution:

    For a spontaneous process ΔG is negative. Since ΔG=ΔHTΔS

    ΔG will always be negative if and only if ΔH is negative and ΔS is positive

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