Question
Define calorie. How many joules make one calorie?
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Answer
One Calorie : One calorie is the amount of heat energy required to raise the temperature of one gram of water through $1^{\circ} C$.
There are 4.2 J in one calorie
$
1 Cal=4.2 J
$
There are 4.2 J in one calorie
$
1 Cal=4.2 J
$
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