Question : One calorie of heat energy is equivalent to approximately ____________ joules of mechanical energy.
Option 1: 0.24
Option 2: 0.48
Option 3: 2.4
Option 4: 4.2
Correct Answer: 4.2
Solution : The correct option is 4.2 .
One calorie of heat energy is equivalent to approximately 4.2 joules of mechanical energy. The calorie is a unit of energy commonly used in the field of thermodynamics and represents the amount of heat required to raise the temperature of one gram of water by one degree Celsius. The joule is the SI unit of energy.
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