Help me with this word problem.anyone?
(A gas occupies a volume of 400. mL at 500. mm Hg pressure. What will be the volume at constant temperature if the pressure is changed to the following.)
1) 783 mm Hg
2) 278 torr
Answer:
Both cases = Inverse proportion ...Boyle's Law.
1...500 ÷ 783 = 0.639
0.639 x 400 = 255.4mL.
2...500 ÷ 278 = 1.8.
1.8 x 400 = 719.4mL
This problem can be answered using Boyle's Law.
The equation to use is P1V1 = P2V2
You will be solving for V2
You will not need to convert pressures in problem 2 since torr and mm Hg are the same thing.
Ideal Gas Law: PV=nRT
Plug it in Plug it in
At a constant temperature, P(1)V(1) = P(2)V(2)
Rearrange to solve for V(2) and plug in the knowns to solve for the unknown.
The answers post by the user, for information only, FunQA.com does not guarantee the right.
More Questions and Answers: