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Which of the following substances has both a standard enthalpy of formation and standard free energy of formation equal to 0?

Which of the following substances has both a standard enthalpy of formation and standard free energy of formation equal to 0?


a) I (s)

b) Br2 (g)

c) H2O (l)

d) H3O+ (aq)

e) C (diamond)


Please explain why the answer is so, thank you :)

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The standard enthalpy of formation of elements in their standard state is 0 The standard Gibbs free energy of... View the full answer

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