What is entropy and real life example

Question

Accepted Answer

Entropy is a measure of disorder or randomness in a system.

Entropy increases with time in a closed system
A messy room has higher entropy than a clean room
Melting of ice is an example of increase in entropy
Burning of wood is another example of increase in entropy

Accepted Answer

Entropy is the measure of a system's thermal energy per unit temperature that is unavailable for doing useful work.
Melting ice makes a perfect example of entropy. As ice the individual molecules are fixed and ordered. As ice melts the molecules become free to move therefore becoming disordered. As the water is then heated to become gas, the molecules are then free to move independently through space. For both of the above reactions the entropy (DS) would be positive.

What is entropy and real life example

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