Which of the following statements about a calorie is true?

A calorie is the amount of heat required to raise the temperature of any substance by one degree Celsius.
1 calorie is equal to 1 joule.
A calorie is the amount of heat required to raise the temperature of one gram of pure water by one degree Celsius.
A calorie is a measurement of light energy.

Question

yamilacarranza yamilacarranza

02-09-2022
Chemistry

contestada

Which of the following statements about a calorie is true?

A calorie is the amount of heat required to raise the temperature of any substance by one degree Celsius.
1 calorie is equal to 1 joule.
A calorie is the amount of heat required to raise the temperature of one gram of pure water by one degree Celsius.
A calorie is a measurement of light energy.

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genewho genewho · Answer 1 · 2022-09-07T13:54:16+02:00

According to the research, the correct option is A calorie is the amount of heat required to raise the temperature of one gram of pure water by one degree Celsius.

What is a calorie?

It is a unit whose function is to express thermal energy, indicating the amount of heat that is needed, with normal pressure, to increase the temperature of 1 gram of H2O by 1ºC.

In the International System, the calorie is replaced by the joule (a calorie is equal to 4.1855 joules), although its use is preserved since it is used to express the energy power that food possesses.

Therefore, we can conclude that according to the research, the correct option is A calorie is the amount of heat required to raise the temperature of one gram of pure water by one degree Celsius.

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