Answer to Question #192663 in Chemistry for Alexis

Question #192663

Power Puff Girls like balloons. They bought a 2.15 L pink balloon at 1.75 atm. When they went outside, the volume changed to 1.32 L. What was the new pressure?


1
Expert's answer
2021-05-13T02:09:16-0400

V1 = 2.15 L

P1 = 1.75 atm

V2 = 1.32 L

P2 = unknown

Assume that the temperature remain uncahnged: T1 = T2 = const


Solution:

Since the temperature and amount of gas remain unchanged, Boyle's law can be used.

Boyle's gas law can be expressed as: P1V1 = P2V2

To find the new pressure, solve the equation for P2:

P2 = P1V1 / V2

P2 = (1.75 atm × 2.15 L) / (1.32 L) = 2.85 atm

P2 = 2.85 atm


Answer: The new pressure was 2.85 atm

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