Question

Which unit of energy is defined as the heat required to raise the temperature of 1 gram of water by 1°C?

A) kilojoule
B) joule
C) watt
D) kilocalorie
E) calorie

Answer 1

A calorie (cal) is the unit of energy that is defined as the amount of heat required to raise the temperature of 1 gram of water by 1°C.

Step-by-step explanation:

The unit of energy defined as the heat required to raise the temperature of 1 gram of water by 1°C is calorie (cal). Joule (J) is the SI unit of energy, and 1 calorie has been set to equal 4.184 joules. The calorie is a commonly used unit of energy, especially when referring to the energy content of food. A kilocalorie (kcal), or 1000 calories, is often used in food labeling, where it is sometimes referred to as a Calorie (with a capital 'C' or noted as 'big calorie').