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प्रश्न
How many calories are in one S.I unit of heat energy?
संख्यात्मक
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उत्तर
The SI unit of heat energy is the joule (J).
Since $$1 \text{ cal} = 4.186 \text{ J} \approx 4.2 \text{ J}$$, $$1 \text{ J} = \frac{1}{4.186} \text{ cal} \approx 0.24 \text{ cal}$$.
Therefore, one SI unit of heat energy contains about 0.24 calories.
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