Question

Define reaction enthalpy.

Answer 1

Answer:-

• The standard enthalpy of reaction for a chemical reaction is the difference between total reactant and total product molar enthalpies, calculated for substances in their standard states. This can in turn be used to predict the chemical bond energy liberated or bound during reaction.

Answer 2

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The amount of heat evolved or absorbed in a chemical reaction when the number of moles of the reactants as represented by the chemical equation have completely reacted, is called the enthalpy of reaction.

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