Question

What are the different phase changes with different enthalpy and entropy?

1) Melting and freezing
2) Vaporization and condensation
3) Sublimation and deposition
4) All of the above

Answer 1

Phase changes involve the transformation of matter between different phases. Examples of phase changes include melting and freezing, vaporization and condensation, and sublimation and deposition.

Step-by-step explanation:

Phase changes involve the transformation of matter from one phase to another. There are several phase changes with different enthalpy and entropy:

1. Melting (solid to liquid) and freezing (liquid to solid) - These processes involve an exchange of heat and result in changes in the energy and entropy of the system.
2. Vaporization (liquid to gas) and condensation (gas to liquid) - These processes also involve an exchange of heat and changes in energy and entropy.
3. Sublimation (solid to gas) and deposition (gas to solid) - These processes involve the direct conversion between the solid and gas phases.

All of these phase changes have specific enthalpy and entropy values associated with them.