Calculating Pressure with Boyle's Law: 38 lbs of Books on 0.45 in^2 Syringe

[Novus Dakota]

So i looked up Boyle's and it said

PV = C

P= pressure

V= Volume

C= constant


so my question is

Suppose 38 pounds of books were balanced on a syringe plunger with a cross-section area of 0.45 in^2?

A) how much pressure would just the books exert on the trapped air sample?

so would this be correct

P= 38/0.45= 84.4 psi

im not sure if 38 is the constant or even if I am using the right formula for this problem. thanks guys

 

[brewnog]

Well, your answer seems right, but you didn't get it from using the Boyle's Law formula which you quoted.

You simply used Pressure=Force/Area, which is perfectly valid.

 

[Dr.Brain]

Moreover , the boyle's law is only applicable to ideal gases at constant temperature and cannot be applied to objects and particle of classical physics.