Entropy increases when liquid or solid is dissolved in water.
Entropy increases with the increase in mass.
With a rise in pressure, the entropy of the system drops.
The general rule is that as pressure on the system increases, the volume of the system, or the space open for particle movement, decreases. This results in a reduction in the randomness of the particles.
As the temperature rises, entropy must rise as well.
The entropy of the system increases with temperature because a higher temperature increases the kinetic energy of molecules and, consequently, unpredictability.