Chemistry 30

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Thermodynamics

1.3a The Calorie - Another Unit of Energy

One calorie is defined as the amount of heat required to raise the temperature of one gram of water by one degree Celsius (1°C).

A dietary calorie, written with a big C (Calorie, not calorie) is actually a kilocalorie, or 1000 calories.

To convert between joules and calories, use the following conversion factors:

1 J = 0.2390 cal   1 cal = 4.184 J

 

 

Credits | Central iSchool | Sask Learning | Saskatchewan Evergreen Curriculum | Updated: 22-May-2006