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प्रश्न
Define calorie. How many joules make one calorie?
एका वाक्यात उत्तर
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उत्तर
One Calorie: One calorie is the amount of heat energy required to raise the temperature of one gram of water through 1°C.
There are 4.2 J in one calorie
1 Cal = 4.2 J
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