Question

The volume of a gas in a container varies inversely with the pressure on the gas. If a gas has a volume of 180 cubic inches under a pressure of 5 pounds per square inch, what will be its volume if the pressure is increased to 9 pounds per square inch?

Answer 1

100cubic inches

Explanation:

varies inversely

pv = k

Find the constant of variation:

volume of 180 cubic inches under a pressure of 5 pounds

5 * 180 = k

k = 900

volume if the pressure is increased to 9 pounds per square inch?

9v = 900

divide both sides by 9

v = 100