C7.3 Reaction Profiles

Which label shows the activation energy?

Which label shows the overall energy change?

Which label shows the products?

Which label shows the reactants?

Label the following reaction profile.

d

c

b

a

Products

Energy

Reactants

Reaction Progress

If 300J of energy is lost during a reaction where the reactants had 1000J of energy, what is the energy of the products?

Mathematical Equivalence

ON

What type of reaction is this?​ (a)  

• Endothermic
• Exothermic

What type of reaction is this?

(a)  

Match the following

• An example of an exothermic reaction

• Combustion

• The system absorbs energy

• Exothermic Reaction

• Energy required to start a reaction

• Endothermic Reaction

• An example of an endothermic reaction

• Activation Energy

• The products have less energy

• Photosynthesis

Which is an exothermic reaction?