Problema Solution

The volume of a gas in a container varies inversely as the pressure on the gas. If a gas has a volume of

249 cubic inches under a pressure of

6 pounds per square inch, what will be its volume if the pressure is increased to

7 pounds per square inch? (Round off your answer to the nearest integer.)

Answer provided by our tutors

let


V = the volume of the gas


P = the pressure of the gas


The volume of a gas in a container varies inversely as the pressure on the gas:


V = C/P, where C is constant


V*P = C


If a gas has a volume of 249 cubic inches under a pressure of 6 pounds per square inch, and V is the volume when the pressure is increased to 7 pounds per square inch we have:


249*6 = V*7


by solving we find:


V = 213 cubic inches


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for a pressure of 7 pounds per square inch the volume is 213 cubic inches.