Question:
One calorie (cal) equals to how many joules (J)?
One calorie (cal) equals to how many joules (J)?
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Remember 1 cal = 4.18 J as a standard conversion factor in thermodynamics.
Updated On: Feb 11, 2026
- 2.18
- 4.18
- 6.18
- 7.18
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The Correct Option is B
Solution and Explanation
1 calorie is equivalent to 4.18 joules. This is the energy required to raise the temperature of 1 gram of water by 1°C.
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