specific heat of water

Short Answers

Question 1: What is heat? What is the S. I. unit of heat?

Answer: Heat is a form of energy, which when absorbed by a body makes it hot and when extracted from a makes it cold. It is also defined as the total kinetic energy possessed by all the molecules of a body. The S. I. unit of heat is joule/kg kelvin.

Question 2: Define the term calorie. How is it related with joule (the SI unit of heat)?

Answer: One calorie is the heat required to raise the temperature of 1 g of water from 14.5°C to 15.5°C

1 Calorie = 4.2 joule.

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