Question on: SS2 Chemistry - Chemical Thermodynamics

The standard enthalpy change of a reaction is defined as:

 

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A

The change in enthalpy of the reaction when reactants are in their standard states.

 

B

The enthalpy change of a reaction that occurs at standard temperature and pressure.

 

C

The difference in enthalpy between products and reactants of a reaction.

 

D

The enthalpy change of a reaction when one mole of a compound is formed from its elements in their standard states.

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Correct Option: D

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