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Question

How is the SI unit of heat related to the unit calorie?


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Solution

Explain the Units of Energy:

  1. We know that the SI unit of heat is joule or J.
  2. One joule can be defined as the force applied in Newton to displace a body of unit mass through 1m.
  3. A calorie is another unit of energy.
  4. The amount of heat required to increase the temperature of 1gram of water by 1°C can be defined as one calorie.
  5. The relation between joules and calories is,

1cal=4.184J


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