Answer: The answer is down below
Step-by-step explanation:
While we have learned about what heat is in quick succession, it is also important to learn about how it is measured and the unit of heat. Let’s discuss them below.
SI Unit of Heat
Generally, in the SI system, all forms of energy are measured in terms of joules. Notably, heat is a form of energy, and therefore the SI unit of heat is also joules (J) which are defined as the amount of energy needed to raise the temperature of a given mass by one degree. Usually, 4.184 joules of heat energy is necessary to increase the temperature of a unit weight (say 1 g) of water from 0 degrees to 1 degree Celsius.
Other Heat Units
In the CGS system, heat is expressed in the unit of calories which is further said to be the heat energy needed to increase the temperature of 1 gm of clean water by one degree Celsius. Sometimes kilocalorie (kcal) is also referred to as a unit of heat where 1 kcal = 1000 cal.
Additionally, the British thermal unit (BTU), which is part of the imperial system, is also used to measure or calculate heat.
