Question

Determine whether Entropy increases or decreases if the following are changed: Temperature, Phase and Number of Particles?

Answer 1

Entropy increases when:

1.Temperature increases.
2.No of particles increases.
3.Phase changes from Solid to Liquid to Gas.

Explanation:

1.When temperature increases, the kinetic energy of the particles increases.As a result, the randomness of particles increases which increases the entropy.

2.As the number of particles increases, there are more particles which contribute to randomness.So the entropy increases.

3.Gasses have the highest entropy as their molecules are far apart from each other and degree of freedom is more.They are followed by liquid and solids respectively.