Question

At 25 C, the equilibrium constant for the reaction 2A(g) <-> B(g) + C(g) is Kp = 0.0833.

If the three gases are mixed in a rigid container having partial pressure of 2.58, 1.71 and 0.307 atm for A, B and C, respectively, is the system at equilibrium?

Potential answers:

The forward reaction must proceed to establish equilibrium, The volume of the container must be known to answer the question, The concentrations of all substances must be known to answer the question, The reverse reaction must proceed to establish equilibrium, The system is at equilibrium

I need every step filled out please. I am terrible with math and need every little step shown to me so I can understand it for myself. Thank you.

Answer 1