Given a fixed amount of gas in a rigid container (no change in volume), what temperature will the gas have to be changed to if the pressure is initially 3.50 atm at 22.0°C, and the desired final pressure is 1.75 atm?
A)−126°C
B)11.0°C
C)44.0°C
D)148°C
E)−148°C

Question

Quizplus · Accepted Answer

According to Gay-Lussac's law, the pressure of a gas is directly proportional to its temperature, provided the volume remains constant. Therefore, if the pressure is decreased, the temperature must also decrease. The correct answer is A) -126°C.

Given a Fixed Amount of Gas in a Rigid Container