Question

example of temperature class 7 chapter heat and it's effects​

Answer 1

Answer:

There are three main scales commonly used in the world today to measure temperature: the Fahrenheit (°F) scale, the Celsius (°C) scale, and the Kelvin (K) scale. Each of these scales uses a different set of divisions based on different reference points, as described in detail below.

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Answer 2

Explanation:

in this chapter u known about heat

specific heat enthalpy entropy

the burning of petrol gives up the mechanical energy, which is used as motor fuel.

when we take food. digestion process start which is the low combustion of food into Co2 and H2O. the hear produced maintain the body temperature and givea energy to tje the body for work.

• when electric current is passed through acidified water. it is decomposed into H2 and O2