Does entropy increase during sublimation

Yes, entropy increases during sublimation. This is because, there is a change of phase from a solid state to a gaseous state which causes an increase in the disorderliness of the particles in the solid matter.

Entropy increases during sublimation. As a system goes towards disorder or randomness, the amount of entropy increases. During sublimation a substance changes state from a solid directly to a gas. In the solid state, the particles are arranged in a particular order held together by bonds. In the gaseous state, however, particles are in random motion. There is more disorder in gases than in solids. Consequently, entropy would increase when changing from a solid to a gas.