Answer to Question #320632 in General Chemistry for Berna

Question

at what Kekvin temperature will 37.5 mol of Ar occupy a volume of 725 L at a pressure of 675 torr ?

Answer 1

At STP ie 760 torr and 273K, 1 mol occupy 22.4L.

Therefore, 37.5 mol occupy 22.4×37.5= 840L

P₁= 760 torr, V₁= 840L and T₁= 273K

P₂= 675 torr, V₂= 725L and T₂= ?

P₁V₁÷T₁ = P₂V₂÷T₂

T₂= P₂V₂T₁ ÷(P₁V₁)

= (675×725×273)÷(760×840)

= 209.3K