A gas occupying a volume of 1.50 L exerts a pressure of 700 mmHg at 200°C.Which mathematical expression gives the correct pressure at 3.50 L and 350°C?

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, we get:
(700 mmHg)(1.50 L)/(473 K) = P2(3.50 L)/(623 K)

Solving for P2, we get:
P2 = (700 mmHg)(1.50 L)(623 K)/(473 K)(3.50 L) 
P2 ≈ 908 mmHg

Therefore, the correct choice is B.

A Gas Occupying a Volume of 1