Potential Energy Diagrams 2024

Front

What is Potential Energy?

Back

Potential Energy is the energy stored in an object due to its position or configuration. It is the energy that has the potential to do work.

Front

What is Activation Energy?

Back

Activation Energy is the minimum energy required to initiate a chemical reaction. It is the energy needed to break bonds in the reactants.

Front

What does a Potential Energy Diagram represent?

Back

A Potential Energy Diagram visually represents the energy changes during a chemical reaction, showing the energy of reactants, products, and the activated complex.

Front

What is the Heat of Reaction (∆H)?

Back

The Heat of Reaction (∆H) is the change in enthalpy during a chemical reaction, indicating whether the reaction is exothermic (releases heat) or endothermic (absorbs heat).

Front

What is an Activated Complex?

Back

An Activated Complex is a temporary, unstable arrangement of atoms that occurs during the transition from reactants to products in a chemical reaction.

Front

How do you determine the Activation Energy from a Potential Energy Diagram?

Back

The Activation Energy is determined by the difference in energy between the reactants and the peak of the activated complex on the diagram.

Front

What is the significance of the PE of Products in a reaction?

Back

The PE of Products indicates the energy level of the products compared to the reactants, helping to determine if the reaction is exothermic or endothermic.

Front

What does a lower PE of Products compared to Reactants indicate?

Back

A lower PE of Products compared to Reactants indicates that the reaction is exothermic, meaning it releases energy.

Front

What does a higher PE of Products compared to Reactants indicate?

Back

A higher PE of Products compared to Reactants indicates that the reaction is endothermic, meaning it absorbs energy.

Front

What is the relationship between the Heat of Reaction and the PE of Reactants and Products?

Back

The Heat of Reaction (∆H) is equal to the PE of Products minus the PE of Reactants.