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Chemical Potential Energy

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Talon Basiewicz

on 6 November 2014

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Transcript of Chemical Potential Energy

Examples of potential sound energy
-
A whistle before it is blown
An owl before it hoots
A balloon before it pops
What is energy?
Chemical Potential Energy
- Kinetic energy is the energy of motion. Anything that moves along at a certain velocity and has mass has kinetic energy. The more mass and/or velocity, the more kinetic energy.

- Potential energy is a type of stored energy that objects have because of their configuration and/or position.

- Kinetic and potential energy are constantly converting into other forms. Some other forms include electrical, thermal, electromagnetic, nuclear, and chemical.
Kinetic and Potential Energy
Free Energy
When two atoms form a bond, they release an amount of energy; the same amount of energy that is released when the bond is created is needed to break the bond.
Chemical potential energy is energy stored in the bonds of chemical compounds. It is released in a chemical reaction, often producing heat as a byproduct.
A chemical reaction is a reaction of molecules that make them change.
It occurs when either bonds form between atoms and energy is released, or when these bonds are broken, and the free energy rushes out.
Chemical Reactions
Chemical bonds are forces that hold chemicals together.
All atoms have a positively charged nucleus and a negatively charged electron cloud. Because of this, atoms both repel and attract each other. A chemical bond helps to overcome these forces.
Chemical Bonds
To show you an example of chemical potential energy, we will do a Diet Coke and Mentos explosion!
How it works:
Specific ingredients contained in Diet Coke, in combination with the gelatin and gum arabic ingredients of the Mentos contribute to the formation of the foam.
The ingredients form chemical bonds, and therefore release a lot of energy, making the mixture explode.

Diet Coke and Mentos
In physics, energy is the ability to do work.
Energy can not be created nor destroyed, but it can be converted into other forms.
The most basic forms of energy are potential and kinetic energy.
Kinetic energy is the energy of motion.
Potential energy is a type of stored energy that objects have because of their configuration and/or position.
Chemical potential energy is energy that is stored in atoms and the bonds between atoms, and can be released by various chemical reactions.
Examples of chemical potential energy include fuel in a car and explosives.
The bonds between atoms are the source of all chemical potential energy.
Weaker bonds=greater chemical potential energy.
Stronger bonds= less chemical potential energy
When 2 atoms form a bond, they release the same amount of energy that is released when the bond is created, which is the amount of energy needed to break the bond.
Free energy is energy available for use in forming bonds.
Chemical bonds are forces that hold chemicals together.
Chemical bonds help overcome forces (the repelling and attraction of positive and negative charges).
Thermal energy is energy released in a chemical reaction.
Summary
http://education-portal.com/academy/lesson/what-is-chemical-energy-definition-examples.html\
http://en.wikipedia.org/wiki/Chemical_potential
http://www.eschooltoday.com/energy/kinds-of-energy/what-is-chemical-energy.html
http://physics.info/energy-chemical/
http://www.wisegeek.com/what-is-chemical-potential-energy.htm
http://education-portal.com/academy/lesson/chemical-potential-energy-definition-examples-quiz.html
http://www.livescience.com/42881-what-is-energy.html

http://education-portal.com/academy/lesson/what-is-thermal-energy-definition-examples.html
Bibliography
Examples of Potential Energy
Examples of Chemical Potential Energy
Examples of Potential Thermal Energy
Thermal Energy
- Thermal energy is the energy released during a chemical reaction. Matter is made up of particles and molecules. These molecules move constantly. A rise in the temperature of matter makes the particles vibrate faster. Thermal energy is energy that comes from the temperature of matter. The hotter the substance, the more its molecules vibrate, and therefore the higher its thermal energy.
What does this have to do with Chemical Potential Energy?
Matter and energy make up the universe.
In physics, energy is the ability to do work.
Energy cannot be created nor destroyed; it is conserved.
It comes in multiple forms. The most basic forms are potential energy and kinetic energy.
All forms of energy can be converted into other forms such as thermal and light energy.

- Most of our energy comes directly or indirectly from the Sun.



Fuel in a car
Explosives
Gasoline before it is ignited
Fireworks before they are launched
Wood in a fireplace before it burns
The wick in a candle
A match before it's struck

What is Chemical
Potential Energy?
Examples of potential energy
-
A coiled spring
Wheels on roller skates before someone skates
An archer’s bow with the string pulled back
When the bonds of an atom
are broken, it produces
kinetic and thermal energy. Chemical energy is the energy stored in the bonds of chemical compounds. It is released in a chemical reaction, often producing heat as a byproduct.
Chemical potential energy is energy that is stored in atoms and the bonds between atoms, and can be released by various chemical reactions.
The bonds between atoms are the source of all chemical potential energy. Weaker bonds have more chemical potential energy, stronger bonds have less chemical potential energy. This is because weak bonds require little energy to break, and strong bonds require more energy to destroy.
Examples of potential radiant energy
-
An incandescent light bulb that is turned off
Your car’s headlights before they are turned on
A swimming pool of water before it is heated
Geysers before they erupt
A mug before you fill it with hot chocolate
An oven before it is turned on
Dead organic matter (potential geothermal energy)
Free energy is energy available for use in forming bonds.
Energy must be used to break bonds, and when a bond is broken, the energy rushes out and becomes free.
Thermal Energy and Real World Examples
When we eat sugar and digest it, the sugar is digested to carbon dioxide and water, and the chemical bonds are broken. When they are broken, the energy is released into thermal energy and kinetic energy. The released kinetic energy is used to do work like producing heat that keeps our bodies warm.
When you place a pot of water on a stove, the thermal energy of the stove causes the particles of the pot and the water to move faster. The internal energy of the stove is transferred to the pot and ultimately the water within the pot.
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