Question

Describe an experiment to demonstrate the process of sublimation. (answer in 3 to 5 lines)

Answer 1

take a inverted funnel and keep it on the china dish,and put cotton plug on the top( not letting the vapour to escape),now put the whole thing on the burner,and put some camphor,and start the Burner, you will see that the camphor is converted into vapour and now turn off the Burner and wait for a while you, you will see that the vapour starts converting into solid again that is camphor.

Answer 2

Experiment: Take some Ammonium chloride powder in a china dish. Cover the china dish with an inverted funnel and put a cotton plug in the end of the funnel so that vapors do not escape. Set up the apparatus as shown. Heat the dish with a burner. Solid ammonium chloride changes into vapors. Which when coming in contact of the walls of funnel get cooled and change to solid and get deposited there.

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