SOLUTION: i can really use your help! If a gas was in a 7.5 liter flexible container under 4 atmospheres of pressure, how would the volume of the gas change and what would it be if the pr

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: i can really use your help! If a gas was in a 7.5 liter flexible container under 4 atmospheres of pressure, how would the volume of the gas change and what would it be if the pr      Log On


   

Question 189916: i can really use your help!
If a gas was in a 7.5 liter flexible container under 4 atmospheres of pressure, how would the volume of the gas change and what would it be if the pressure was increased to 6.5 atmospheres, keeping all other variables constant?
a. The volume would decrease to about 4.6 liters.
b. The volume would decrease to about 3.5 liters.
c. The volume would increase to about 12.2 liters.
Answer by schrammbledeggs(41) About Me  (Show Source):
You can put this solution on YOUR website!
For this chemistry problem you want to use the equation P1V1 = P2V2 where:

P1 = Initial Pressure
V1 = Initial Volume
P2 = Changed Pressure
V2 = Changed Volume

We're given values for everything but V2 so let's plug in the other values:

4 atm * 7.5 liters = 6.5 atm * V2
30 atm/liter = 6.5atm * V2


Divide both sides by 6.5 atm:
30 atm/liter / 6.5 atm = V2
4.615 ~ V2

So the answer is a. The volume would decrease to about 4.6 liters.
:)