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Chemistry, 26.11.2019 00:31 kellysmith45

Which of these statements is true?
(a) all spontaneous reactions have a negative enthalpy change
(b) all spontaneous reactions have a positive entropy change
(c) all spontaneous reactions have a positive free-energy change
(d) all spontaneous reactions have a negative free-energy change
(e) all spontaneous reactions have a negative entropy change

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