Question

What is the conclusion you would draw from the following graphs?

• A. As the temperature is reduced, the volume as well as the pressure increase
• B. As the temperature is reduced, the volume becomes zero and the pressure reaches infinity
• C. As the temperature is reduced, both the volume and the pressure decrease
• D. A point is reached where theoretically, the volume as well as the pressure become zero

Answer 1

Answer: (C), (D)

As the temperature is reduced, both the volume and the pressure decrease
A point is reached where theoretically, the volume as well as the pressure become zero

(A) and (C); When the temperature decreases, the pressure and the volume decrease. Hence, the option A is wrong conclusion and C is right conclusion.
(B) and (D); As the temperature is reduced to 0 $K$, both volume and pressure reaches 0. Thus option B is wrong conclusion and option D is the right conclusion.