Neon gas at 305 K is confined within a constant volume at a pressure P₁.If the gas has a pressure P₂ when it is cooled to 125 K,what is the ratio of P₂ to P₁?

Question

Quizplus · Accepted Answer

The pressure of a gas is directly proportional to its temperature when volume and the amount of gas are held constant (Gay-Lussac's Law). Therefore, $P_2/P_1 = T_2/T_1$. Given $T_1 = 305 K$ and $T_2 = 125 K$, $P_2/P_1 = 125/305 = 0.410$.

Neon Gas at 305 K Is Confined Within a Constant