Question

1.13
Activity
Take some camphor or ammonium
chloride. Crush it and put it in a china
dish.
Put an inverted funnel over the china
dish.
Put a cotton plug on the stem of the
funnel, as shown in Fig. 1.7.
Cotton plug
Inverted funnel
Ammonium
chloride
vapours
Ammonium
chloride
solidified
China dish
Burner
Fig. 1.7: Sublimation of ammonium chloride
Now, heat slowly and observe.
What do you infer from the above
activity?

write an activity with experiment, observation and conclusions​

Answer 1

Answer:

Ammonium chloride when heated directly changes form solid state to gaseous state.

This is called sublimation.

When this cools it turns back into solid ammonium chloride.

We conclude that ammonium chloride when heated it sublimates