Potential Energy Diagrams

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.

Tags

NGSS.MS-PS3-2

Front

What is a Potential Energy Diagram?

Back

A Potential Energy Diagram is a graphical representation that shows the potential energy of a system as a function of the reaction coordinate, illustrating the energy changes during a chemical reaction.

Tags

NGSS.HS-PS1-4

Front

What does the peak of a Potential Energy Diagram represent?

Back

The peak of a Potential Energy Diagram represents the energy of the activated complex, which is the highest energy state during the reaction.

Front

What is the activated complex?

Back

The activated complex is a transient, high-energy state that occurs during the transition from reactants to products in a chemical reaction.

Front

What does ΔH represent in a Potential Energy Diagram?

Back

ΔH represents the change in enthalpy (heat content) of the reaction, calculated as the difference in energy between the products and reactants.

Tags

NGSS.HS-PS1-4

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy in the form of heat, resulting in a decrease in the potential energy of the system.

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, resulting in an increase in the potential energy of the system.

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Front

How does a catalyst affect a Potential Energy Diagram?

Back

A catalyst lowers the activation energy of a reaction, which is represented by a decrease in the height of the energy barrier in the Potential Energy Diagram.

Tags

NGSS.HS-PS1-4

Front

What is activation energy?

Back

Activation energy is the minimum energy required for a chemical reaction to occur, represented by the difference in energy between the reactants and the activated complex.

Front

What is the significance of the arrows in a Potential Energy Diagram?

Back

The arrows in a Potential Energy Diagram indicate the direction of energy change during the reaction, with upward arrows representing energy input and downward arrows representing energy release.

Tags

NGSS.HS-PS1-4