The temperature of a specific amount of gas in a sealed container changes from 20.0°C to 40.0°C.If the volume remains constant,the pressure will change from 755 mmHg to
A)1510 mmHg
B)707 mmHg
C)378 mmHg
D)807 mmHg
E)755 mmHg

Question

Quizplus · Accepted Answer

According to Charles's Law, at constant volume, the pressure of a gas is directly proportional to its absolute temperature. Therefore, using the formula P1/T1 = P2/T2, we can calculate the new pressure:
P2 = (P1 x T2) / T1
P2 = (755 mmHg x 313 K) / 293 K
P2 = 807 mmHg
So the answer is D, 807 mmHg.

The Temperature of a Specific Amount of Gas in a Sealed