A container has two chambers of volumes V1 = 2 litres and V2 = 3 litres separated by a partition made of a thermal insulator. The chambers contain n1 = 5 and n2 = 4 moles of ideal gas at pressures p1

Question

A container has two chambers of volumes V1 = 2 litres and V2 = 3 litres separated by a partition made of a thermal insulator. The chambers contain n1 = 5 and n2 = 4 moles of ideal gas at pressures p1 = 1 atm and p2 = 2 atm, respectively. When the partition is removed, the mixture attains an equilibrium pressure of:

Vishal Gupta · Accepted Answer

B. Temperature is the same throughout (no heat exchange with outside, ideal gases). Final P = \frac{n1 + n2}{V1 + V2}RT and RT = \frac{p1V1}{n1} = \frac{p2V2}{n2}. Using p1V1 + p2V2 = (n1 + n2)RT: P = \frac{1	imes2 + 2	imes3}{5} = 1.6 atm.

Kinetic Theory

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