Respuesta :

1. The potential energy of the reactants is 100 KJ

2. The potential energy of activation complex is 350 KJ

3. The potential energy of the products is 50 KJ

4. The reaction is exothermic reaction

5. The enthalpy change, ΔH for the reaction is –50 KJ

6. The activation energy for the reaction is 250 KJ

Data obtained from the diagram

  • Potential energy of the reactants = 100 KJ
  • Potential energy of activation complex = 350 KJ
  • Potential energy of the products = 50 KJ

Determination of the nature of the reaction.

  • Potential energy of the reactants = 100 KJ
  • Potential energy of the products = 50 KJ

From the above data, we can see that the potential energy of the products is lesser than the potential energy of the reactants.

Thus, the reaction is exothermic reaction.

Determination of the enthalpy change, ΔH

  • Potential energy of the reactants (PEᵣ) = 100 KJ
  • Potential energy of the products (PEₚ) = 50 KJ
  • Enthalpy change (ΔH) =?

ΔH = PEₚ – PEᵣ

ΔH = 50 – 100

ΔH = –50 KJ

Determination of the activation energy

  • Potential energy of the reactants (PEᵣ) = 100 KJ
  • Potential energy of activation complex (PE꜀) = 350 KJ
  • Activate energy (Eₐ) =?

Eₐ = PE꜀ – PEᵣ

Eₐ = 350 – 100

Eₐ = 250 KJ

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