Question

(ii) Name the process associated with the following:
a) Fine beam of light entering through a small hole
in a dark room illuminates the dust particles in its
path.
b) Acetone bottle is left open and bottle becomes
empty
(3)​

Answer 1

Answer:

a) Tyndall Effect

b) Evaporation

Answer 2

Answer:

(g) Fine beam of light entering through a small hole in a dark room. Illuminates the particles in its paths. Answer: (a) The process is sublimation because when dry ice (solid CO2) is kept at room temperature at one atmospheric pressure, it sublimes leaving no residue.