| J | i- joule
- The Joule is the SI derived units of energy or works (N • m)
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| N • m | i- Newton meter
- SI Base unit of energy or work
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| kJ | i- kilojoule
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| cal | i- calorie
- According to the definition 1 cal = 4.1868 J.
The calorie is the amount of heat required at a pressure of one atmosphere to raise the temperature of one gram of water by one degree Celsius
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| kcal | i- kilocalorie
- For more information see calorie
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| Btu | i- British termal unit
- Unit of heat energy defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit
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| kW • h | i- kilowatt hour
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| hp • h | i- horse power hour
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| ft • lbf | i- foot pound force
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| GJ | i- gigajoule
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| erg | i- erg
- Unit of work or energy in the CGS system
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