Question

MCQ : By definition 1 cal is equal to

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Answer

Question

By definition 1 cal is equal to

  1. 1 J
  2. 14.186 J
  3. 4.186 J
  4. none

Answer

4.186 J

Explanation

By definition, 1 cal (calorie) is equal to 4.186 J (joules), which is the amount of energy required to raise the temperature of 1 gram of water by 1 degree Celsius.

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