The words "entropy" and "the second law of thermodynamics" are often used interchangeably, but there is...

The words "entropy" and "the second law of thermodynamics" are often used interchangeably, but there is a difference. Describe the difference between “entropy” and “the second law of thermodynamics”.

Expert Solution

Entropy is a thermodynamic property of all substances which is proportional to their degree of disorder. The greater the number of microstates for a system, the greater the disorder and the higher the entropy.

Mathematically, it can be defined as the quantity of heat given to system by the temperature at which it is given

dS=dQ/T

Second law of thermodynamics states that a process which starts in one equilibrium and end in another will go in the direction that causes the entropy of the system plus the environment to increase the entropy for an irreversible process and to remain constant for an reversible process.

For reversible process : dS=0

For irreversible process : dS>0

I m giving u examples for both by attaching images:

genius_generous answered 2 years ago

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