Potential Energy Diagrams - Higher Chemistry (Unit 3)

Which letter represents the enthalpy change for the reaction?

• A

• B

• C

• D

• E

Which letter represents the activation energy for the forward reaction?

• A

• B

• C

• D

• E

Is the forward reaction exothermic or endothermic?

• Exothermic

• Endothermic

Which letter represents the activation energy for the reverse reaction?

• A

• B

• C

• D

• E

The enthalpy change of the reverse reaction will be...

• Positive

• Negative

What is the energy of the activated complex?

• 20 kJ

• 40 kJ

• 60 kJ

• 80 kJ

• 100 kJ

What is the activation energy of the forward reaction?

• 20 kJ

• 40 kJ

• 60 kJ

• 80 kJ

• 100 kJ

What is the activation energy of the reverse reaction?

• 20 kJ

• 40 kJ

• 60 kJ

• 80 kJ

• 100 kJ

What is the enthalpy change for the forward reaction?

• +50 kJ

• -50 kJ

• +200 kJ

• -200 kJ

What is the enthalpy change for the reverse reaction?

• +50 kJ

• -50 kJ

• +200 kJ

• -200 kJ