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NEETChemistryThermodynamics (C)

What is the net enthalpy change of a reaction?

Options

  1. AThe enthalpy change when all bonds in the reactant molecules are broken.
  2. BThe enthalpy change when all bonds in the product molecules are broken.
  3. CThe enthalpy change when all bonds in both reactant and product molecules are broken.
  4. DThe enthalpy change when the reaction occurs at constant pressure.

Correct answer

C. The enthalpy change when all bonds in both reactant and product molecules are broken.

Step-by-step solution

The net enthalpy change of a reaction considers the energy required to break all bonds in both reactant and product molecules.

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