Assume that 0.406 mol Carbon (g) is placed in a cylinder that is expanding. The barometric pressure on the outside of the cylinder is constant at 1.00 atm and the temperature is 300.0 K. What is the volume in the cylinder at equilibrium if the original volume [before the 0.406 mole carbon gas begins to decompose] is 10.00 L.? K = 1.30 * 10^2.