A 23.6 -L sample of nitrogen at 4.45 atm and 23°C is simultaneously expanded to 50.8 L and heated to 37°C.What is the new pressure of the gas?
A)3.33 atm
B)2.17 atm
C)167 atm
D)257 atm
E)1.97 atm

Question

Quizplus · Accepted Answer

We can use the combined gas law to solve for the new pressure:

P1V1/T1 = P2V2/T2

Plugging in the given values:

(4.45 atm)(23.6 L)/(296 K) = P2(50.8 L)/(310 K)

Solving for P2:

P2 = (4.45 atm)(23.6 L)/(296 K) * (310 K)/(50.8 L)

P2 = 2.17 atm

The new pressure of the gas is 2.17 atm, so the best choice is B.

A 236 -L Sample of Nitrogen at 4