When the vapor pressure of a liquid is equal to the atmospheric pressure, the liquid ____.
a. has no observable changes.
b. boils vigorously.
c. evaporates.
d. begins to boil.
Answer: D
When the vapor pressure of a liquid is equal to the atmospheric pressure, the liquid ____.
a. has no observable changes.
b. boils vigorously.
c. evaporates.
d. begins to boil.