Question

Absolute zero (0 K) is that temperature at which:

• A. Matter ceases to exist
• B. Ice melts and water freezes
• C. Volume and pressure of a gas becomes zero
• D. None of these

Answer 1

Answer: (C), (D)

The correct options are
C

Volume and pressure of a gas becomes zero

D

None of these

We know that P = $P_0(1+\gamma t)andV=V_0(1+\gamma t)$

and $\gamma =(\frac{1}{273}{)}^{\circ }Cfort=-{273}^{\circ }C,$ we have P = 0 and V = 0

Hence, at absolute zero, the volume and pressure of the gas become zero.