Chemistry help

Question

A gas has a pressure of 2.03 atm when its

volume is 3.86 L. What will the pressure

be when the volume is changed to 1.44 L, assuming constant temperature? Express the

final pressure in torr.

Answer in units of torr.

Answer 1

This is an application of Boyle's Law:

 

P₁V₁ = P₂V₂

 

For you, the initial pressure P₁ = 2.03 while the initial volume V₁ = 3.86. Final volume V₂ = 1.44. So, plug those three values into the formula and solve for the unknown P₂.