Consider the reaction
A(g) + B(g) ⇌ C(g) for which K = 1.30 × 102.
Assume that 0.406 mole of C(g) is placed in the cylinder represented here. The temperature is 300.0 K, and the barometric pressure on the piston (which is assumed to be massless and frictionless) is constant at 1.00 atm. The original volume [before the 0.406 mole of C(g) begins to decompose] is 10.00 L. What is the volume in the cylinder at equilibrium?