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Physics
UTME / JAMB 1981
Evaporation and Boiling
Solution
A vapour is said to be saturated when?
A
more molecules return to the liquid than leave it
B
a dynamic equilibrium exists between the liquid molecules and the vapour molecules at a given temperature
C
the vapour pressure is atmospheric
D
the temperature of the vapour varies
E
all molecules are moving with the same speed
medium Difficulty
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