Potential Energy Diagrams and Reactions

The video tutorial explains a reaction using a potential energy diagram. It covers the potential energies of reactants and products, calculates the heat of reaction using Delta H, and discusses activation energy and the activation complex. The tutorial concludes with an explanation of energy absorption and release in reactions.

What does each interval on the potential energy diagram represent?

• 5 KJ per mole

• 20 KJ per mole

• 15 KJ per mole

• 10 KJ per mole

What is the potential energy of the reactants in the given reaction?

• 10 KJ per mole

• 40 KJ per mole

• 20 KJ per mole

• 30 KJ per mole

Which arrow represents the potential energy of the products?

• Arrow 2

• Arrow 1

• Arrow 3

• Arrow 4

How is the heat of reaction symbolized in the diagram?

• Triangle H

• Triangle P

• Triangle R

• Triangle E

What is the value of Delta H for the reaction?

• 30 KJ per mole

• 40 KJ per mole

• 10 KJ per mole

• 20 KJ per mole

What is the activation energy of the reaction?

• 50 KJ per mole

• 40 KJ per mole

• 30 KJ per mole

• 20 KJ per mole

Which arrow represents the activation complex?

• Arrow 5

• Arrow 1

• Arrow 4

• Arrow 3

Where would the 30 KJ per mole be placed if the heat is absorbed?

• Above the activation energy

• In the middle of the diagram

• On the reactant side

• On the product side

What is the total energy of the reaction as represented by the activation complex?

• 70 KJ per mole

• 40 KJ per mole

• 50 KJ per mole

• 60 KJ per mole

If the heat of reaction is released, where would the 30 KJ per mole be written?

• On the product side

• On the reactant side

• In the middle of the diagram

• Above the activation energy