Question

which statement(s) is/are true for a liquid that has reached its boiling point?
select all that apply
a vapor pressure = atmospheric pressure
b vapor pressure < atmospheric pressure
c bubbles can form.
d bubbles cannot form.

Explanation:

• When a liquid reaches its boiling point, the vapor pressure of the liquid equals the atmospheric pressure. This allows bubbles (which are pockets of vapor) to form throughout the liquid. If the vapor pressure was less than the atmospheric pressure (\(b\) and \(d\) would be incorrect), bubbles could not form as the external pressure would collapse them.

Answer:

A. vapor pressure = atmospheric pressure
C. Bubbles can form.