Posted by **Rachal** on Tuesday, June 7, 2011 at 7:30pm.

Boyle's Law says that the volume of a gas varies inversely with the pressure. When the volume of a certain gas is 4L, the pressure is 165 kPa(kilopascals). What is the volume when the pressure is 60 kPa?

- Algebra -
**Reiny**, Tuesday, June 7, 2011 at 8:14pm
".. the volume of a gas varies inversely with the pressure"

implies that

V =k/P, where k is a constant

given: when V=4, P = 165

4 = k/165

k = 660

so we have : V = 660/P

when P = 60

V = 660/60 = 11

or

the volume of a gas varies inversely with the pressure

V1/V2 = P2/P1

4/V2 = 60/165

60V2 = 660

V2 = 660/60 = 11

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