How much energy is required to raise the temperature of 1g of a substance to 10 $^{o}$ C.?

4 J

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4.2 J

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1.5 C

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2.1 C

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Solution

The correct option is B 4.2 J
A calorie is a unit of energy which refers to the energy people get from the food and drink they consume, and the energy they use in physical activity.
In general it is the quantity of heat required to raise the temperature of 1g of a substance to 10 C. When expressed in joules which is also a unit of energy, One calorie equals to 4.2 joules.

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