A certain substance,X,has a triple-point temperature of 20°C at a pressure of 2.0 atm.Which one of the statements (A-D)cannot possibly be true?
A)X can exist as a liquid above 20°C.
B)X can exist as a solid above 20°C.
C)Liquid X can exist as a stable phase at 25°C,1 atm.
D)Both liquid and solid X have the same vapor pressure at 20°C.
E)All of the statements (A-D)could be true.

Question

Quizplus · Accepted Answer

The Answer of A certain substance,X,has a triple-point temperature of 20°C at a pressure of 2.0 atm.Which one of the statements (A-D)cannot possibly be true?
A)X can exist as a liquid above 20°C.
B)X can exist as a solid above 20°C.
C)Liquid X can exist as a stable phase at 25°C,1 atm.
D)Both liquid and solid X have the same vapor pressure at 20°C.
E)All of the statements (A-D)could be true.

A Certain Substance,X,has a Triple-Point Temperature of 20°C at a Pressure