2022
Chemistry
POST UTME
When does a liquid starts boiling?
A.
When its volume is sufficiently decreased
B.
When its vapour pressure equals the atmospheric pressure
C.
When its molecules start escaping from its surface
D.
When it is compressed enough
Correct Answer: When its vapour pressure equals the atmospheric pressure
Explanation
A liquid starts boiling when its vapour pressure equals the atmosphere (external) pressure
A liquid starts boiling when its vapour pressure equals the atmosphere (external) pressure
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