Q101 · CSIR NET Chemistry, June 2013
Paper: CSIR NET June 2013 · Subject: Physical Chemistry · Chapter: Thermodynamics · Topic: Thermodynamics – General · Marks: 2 · Difficulty: Easy
The lowest pressure at which the liquid phase of a pure substance can exist is known as
(a)critical point pressure
(b)super-incumbent pressure
(c)triple-point pressure
(d)saturation vapour pressure.
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
Below the triple-point pressure a liquid cannot exist at any temperature; the triple-point pressure is the lowest pressure for the liquid phase.
Study loop for Thermodynamics