Question

what temperature units should be used when performing calculations using charless law?
any temperature units can be used in this equation
k only
°c only

Explanation:

Charles's Law relates the volume and temperature of a gas at constant pressure, expressed as $\frac{V_1}{T_1} = \frac{V_2}{T_2}$. It requires absolute temperature to avoid negative values and ensure proportionality, so Kelvin (K) is the only valid unit.

Answer:

K only