Given: P1: 4.2162 atm, P2: 5.7166 atm, V2: 53.914L, T1: 681.53K, T2: 891.28K , Wanted: liters of CH4

Answer 1

First think about the relationship between PV = T because n and R are constants. This can be converted into PV/T = 1. You can set the 2 equations equal to one another because n does not change. P₁V₁/T₁ = P₂V₂/T₂

Now you need to use algebra to rearrange the equation so that you can solve for V₁

V₁ = P₂V₂T₁/T₂ P₁ Now you can plug in a solve for it.