Question

The unit of heat in S. I system is called
1. Pascal
2. Joule
3. Newton
4. Calorie

Answer 1

Correct Answer - Option 2 : Joule

Explanation:

Heat

• It is a form of energy. Heat energy can be transformed into other forms of energy.
• Heat flows from a hotter body to a colder body.

Units of heat

1. Calorie: It is the quantity of heat required to raise the temperature of 1 gram of water through 1°C.
2. BTHU: It is the quantity of heat required to raise 1 lb of water through 1°F. (British thermal unit).
3. C.H.U: It is the quantity of heat required to raise 1 lb of water through 1°C.
4. Joule: S.I. Unit (1 Calorie = 4.186 joule)