Which type of reaction is indicated by a positive AH?
o an endothermic reaction
O a reversible reaction
O a spontaneous reaction
O an exothermic reaction


  1. Answer:

    An endothermic reaction


    A positive sign indicates that energy is absorbed. Hence it is an endothermic reaction.

    A reversible reaction is indicated by a double arrow on the chemical equation.

    A spontaneous is indicated by negative Gibbs Free Energy (G) value.

    An exothermic reaction is indicated by a negative enthalpy change

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