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Energy stored in the atoms and molecules of a substance is?
Chemical energy is stored in the bonds of the atoms making up a molecule.
What happens to energy during a chemical change?
when a chemical change occurs, chemical bonds are broken up
A device that uses chemicals to generate and store electricity?
Energy storage is accomplished by devices or physical media that store energy to perform useful operation at a later time. A device that stores energy is sometimes called an accumulator.All forms of energy are either potential energy (e.g. Chemical, gravitational, electrical energy, etc.) or kinetic energy (e.g. thermal energy). A wind-up clock stores potential energy (in this case mechanical, in the spring tension), abattery stores readily convertible chemical energy to operate a mobile phone, and a hydroelectric dam stores energy in a reservoir as gravitational potential energy. Ice storage tanks store ice (thermal energy) at night to meet peak demand for cooling. Fossil fuels such as coal and gasoline store ancient energy derived from sunlight by organisms that later died, became buried and over time were then converted into these fuels. Even food (which is made by the same process as fossil fuels) is a form of energy stored in chemical form.
Can electrical energy be converted to chemical energy?
Yes, like in charging up a battery.
Can chemical energy be converted to electrical energy?
Yes, like in charging up a battery.
Does a dam store up chemical energy?
No it stores potential energy.
What stored energy in plants?
Batteries and plants store cell energy. Humans also store cell energy until it is needed. If there was no way to save energy all cells would be used up and the body, battery or plant would be dead.
How do you convert electrical energy into potential energy?
You can use the electricity to pump water up into a high reservoir, where it then has mechanical potential energy. Or store it in a battery - chemical potential energy.
Why would a bicycle dynamo be considered a generator?
Because it is a generator. It picks up kinetic energy from the wheel, and turns it into electric energy.
Why don't we convert mechanical energy of fan into electrical energy using dynamo?
A fan needs energy to work. Suppose we use a dynamo, driven by the fan. The output of the dynamo is supposed to drive the fan. In this loop, some energy leaks away, into moving air not captured by the arrangement set up to drive the dynamo. More energy is lost in the working of the fan, and of the dynamo, appearing as heat and wear. If we provide this system with 100 joules to start it off, soon all that energy will have leaked away and pretty quickly the thing will stop working. On the other hand, if your fan is a windmill driven by external sources (wind), then the wind energy can be converted to useful energy. But not to drive the windmill.
Energy stored in the atoms and molecules of a substance is?
Chemical energy is stored in the bonds of the atoms making up a molecule.
Start up energy of a chemical reaction?
Energy that starts a chemical reaction is called activation energy
Is chemical energy used up when the battery energy is used up?
Yes.
What happens to energy during a chemical change?
when a chemical change occurs, chemical bonds are broken up
What is a chemical energy made up of?
It is made up of atoms that connect and make energy
Four ways to store energy?
Storing energy in large quantities is difficult. A standard car battery can store around half a kilowatt-hour of energy. Fuel cells are being developed to store energy more efficiently (less mass/volume). A method of storing energy that is used in several places in the world is to use excess electrical energy to pump water up into a dam, and the water can then be released to drive the machines that turn the potential energy of that water back into electrical energy.
What is lowered to speed up a chemical reaction?
Activation energy is lowered to speed up a chemical reaction.
