Question

For a reaction to be spontaneous at all temp which of the following set of condition is true?
delta H 0
delta H > 0 and delta S > 0
delta H = 0 and delta S < 0

Answer 1

Answer:

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Answer 2

Answer:

They can only measure changes in enthalpy. When enthalpy is positive and delta H is greater than zero, this means that a system absorbed heat. This is called an endothermic reaction. When enthalpy is negative and delta H is less than zero, this means that a system released heat. This is called an exothermic reaction.