A sample of nitrogen gas has a volume of 32.4 L at 20°C. The gas is heated to 220ºC at constant pressure. What is the final volume of the nitrogen gas?
A) 2.94 L
B) 19.3 L
C) 32.4 L
D) 54.5 L
E) 356 L

Question

Quizplus · Accepted Answer

Using the combined gas law: 
P1V1/T1 = P2V2/T2 
Pressure remains constant, so P1/P2 = 1 
V1 = 32.4 L 
T1 = 20°C + 273.15 = 293.15 K 
T2 = 220°C + 273.15 = 493.15 K 
Solving for V2: 
V2 = (P1 x V1 x T2) / (T1 x P2) = (1 x 32.4 x 493.15) / (293.15 x 1) = 54.5 L 
Therefore, the final volume of the nitrogen gas is 54.5 L.

A Sample of Nitrogen Gas Has a Volume of 32