Select the single best answer.
At 425 degrees C, Kp = 4.18 x 10^-9 for the reaction 2 HBr(g) ⇌ H2(g) + Br2(g)
In one experiment, 0.20 atm of HBr(g), 0.090 atm of H2(g), and 0.090 atm of Br2(g) are introduced into a container. Is the reaction at equilibrium? If not, in which direction will it proceed?