Chemistry - Ideal Gas Question with Solution | TestHub

Charles' law states that at constant pressure, the volume of a gas is directly proportional to its absolute temperature: $V\propto T$.

Therefore, a graph of $V$ vs $T(K)$ must be a straight line passing through the origin, as shown in Option (B).

Since $\frac{V}{T}$ remains constant, Option (C) is also correct.

A graph of $V$ vs t℃ is a straight line cutting the temperature axis at -273.15℃, so Option (D) also represents Charles' law.

In Option (A), the $V–T(K)$ graph does not pass through the origin, which violates $V\propto T$.

Hence, Option (A) does not represent Charles' law.