The energy that cannot be used to do useful work is called free energy.
Not at all. A large concentration of energy can be quite destructive. Examples:
Heat may be useful in some cases... But once you have heat, you can no longer convert it to other forms of energy. At least, not all of it.
Heat may be useful in some cases... But once you have heat, you can no longer convert it to other forms of energy. At least, not all of it.
Heat may be useful in some cases... But once you have heat, you can no longer convert it to other forms of energy. At least, not all of it.
Heat may be useful in some cases... But once you have heat, you can no longer convert it to other forms of energy. At least, not all of it.
Not at all. A large concentration of energy can be quite destructive. Examples:
Suppose your house burned down. A lot of energy is produced, but definitely not useful!
it will vanish in the air and pop in the water then go to space
It depends on what energy you want. For example heat energy is sometimes not useful, eg when computers heat up
Heat may be useful in some cases... But once you have heat, you can no longer convert it to other forms of energy. At least, not all of it.
Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.
Waste energy.
You divide useful output energy by the input energy. Or equivalently, useful output power by input power.
Useful is the actual production of electricity. Non-useful -- unused heat energy released into the environment.
Virtually all forms and types of energy are useful in some way or another.
The useful energy that comes out is light energy. Heat energy is also produced but is not useful
Useful: Energy Light Sound Non-Useful: Electricity C02
Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.
Waste energy
Usually, the amount of useful energy after a conversion will be less than the original energy. In no case can it be more.Usually, the amount of useful energy after a conversion will be less than the original energy. In no case can it be more.Usually, the amount of useful energy after a conversion will be less than the original energy. In no case can it be more.Usually, the amount of useful energy after a conversion will be less than the original energy. In no case can it be more.
Energy as such can NOT be destroyed - however, you can convert useful energy into unusable energy.Energy as such can NOT be destroyed - however, you can convert useful energy into unusable energy.Energy as such can NOT be destroyed - however, you can convert useful energy into unusable energy.Energy as such can NOT be destroyed - however, you can convert useful energy into unusable energy.
Currently, gold is not useful in any form of energy production.
Waste energy.
Waste energy.
You divide useful output energy by the input energy. Or equivalently, useful output power by input power.
vague question. Efficiency in terms of energy = useful energy/total energy x 100 vague question. Efficiency in terms of energy = useful energy/total energy x 100
Useful is the actual production of electricity. Non-useful -- unused heat energy released into the environment.