Question

What is entropy????

Answer 1

In general physucs, entropy means a thermodynamic quantity that changes in a reversible process by an amount equal to the heat absorbed or emitted divided by the thermodynamic temperature. It is measured in joules per kelvin (J/K).
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Answer 2

Entropy is defined as the measure of degree of disorder or the Thermodynamic Representation of randomness of a system.

It is a stare function since it depends on the state of a system.
It is designated by symbol 'S'.

Apart from depending on state of the system,entropy also depends on temperature.

If entropy increases then the randomness of a particle also increases.
For example, ice kept on a plate forms water because the water molecules in liquid state have more entropy (randomness) than they have in solid state.

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