Question

Name the technique used to separate camphor from salt.

Answer 1

Sublimation:

1. Sublimation is defined as the transition of a substance from a solid to a gaseous state without passing through the liquid state.
2. Some molecules get a lot more energy than their neighbors when they absorb heat energy, which allows them to overcome the force of attraction and escape into the vapor phase.
3. An endothermic phase change occur when the temperature and pressure are below the substance's triple point.
4. This process is used in our everyday processes. This is how air fresheners work.
5. This sublimation process can be used as a great purifying procedure. This is a very good approach for separation and purification when a solid is contaminated with non-volatile contaminants.
6. In the mixture of Salt and Camphor, camphor is sublime in nature i.e. it will evaporate leaving the salt behind. After this, we can collect the salt easily.

Therefore, Sublimation is used to separate camphor from salt.