Lesson: Reaction Profiles

Which of the diagrams best describes the changes in chemical energy for a stick of dynamite during an explosion?

Which of the diagrams best describes the changes in chemical energy for a packet of pasta stored in a kitchen cupboard?

Which of the diagrams best describes the changes in chemical energy for a piece of aluminum being heated by a blowtorch?

Which of the diagrams best describes the changes in chemical energy for a tank of burning petrol?

Which components of a chemical reaction are indicated by A?

Which components of a chemical reaction are indicated by B?

Which components have more energy, those at A or those at B?

Which components are more stable, those at A or those at B?

Would this reaction happen spontaneously?

Illustrated in the reaction profile are the changes in chemical energy during a reaction as the reactant molecules are converted to products.

Based on the reaction profile, is energy absorbed or released during the reaction?