Which of the following describe the critical point of a liquid?
I.the temperature and pressure at which a liquid's meniscus disappears
II.the point where the vapor pressure curve intersects the fusion temperature curve
III.the highest temperature and pressure at which a liquid can exist
IV.the highest temperature at which it is possible to obtain a liquid from its vapor by increasing pressure
A)I,II,III
B)I,III,IV
C)II,III
D)II,III,IV
E)I,IV

Question

Quizplus · Accepted Answer

The critical point of a liquid is defined as the highest temperature and pressure at which a liquid can exist (III) and the temperature and pressure at which a liquid's meniscus disappears, indicating the phase boundary between liquid and gas no longer exists (I). It is also the highest temperature at which a liquid can be formed from its vapor by increasing pressure (IV).

Which of the Following Describe the Critical Point of a Liquid