Recall this gas law:
[tex]\frac{P₁V₁}{T₁}[/tex] = [tex]\frac{P₂V}{T₂}[/tex]
P₁ and P₂ are the initial and final pressures.
V₁ and V₂ are the initial and final volumes.
T₁ and T₂ are the initial and final temperatures.
Given values:
P₁ = 475kPa
V₁ = 4m³, V₂ = 6.5m³
T₁ = 290K, T₂ = 277K
Substitute the terms in the equation with the given values and solve for Pf:
[tex]\frac{475*4}{290} = \frac{P₂*6.5}{277}[/tex]
P₂ = 279.2kPa
