Question

Entropy is a measure of disorder. Explain.

Answer 1

The concept of entropy was introduced by Clausius in 1850. Entropy is used to measure the thermal energy of the system. It can be denoted with a symbol S.

Complete Solution :
- In the given question it is asked about entropy.
- The disorder is nothing but randomness in a system can be measured by using entropy.
- If the disorder is high then the entropy is also high.
- Means entropy and disorder are directly proportional to each other.
- If the state of a chemical changes from solid to liquid then the randomness in the system increases means entropy also increases.
- If the liquid is going to change into vapor then entropy increases more.
- The change of the state of the chemical is going to depend on the amount of absorption of heat.
- Because the rate of disorder is increasing from solid to liquid and liquid to vapor.
- Automatically the entropy also increases when a solid is going to convert into liquid and a liquid is going to convert into vapor.
- Therefore the entropy is a measure of randomness or disorder in a system.

Note: In solid state atoms are closely packed in equilibrium position in the lattices of the crystal gives more proper arrangement means very less disorder. So, entropy is very less in case of solids when compared to liquids and gases.