Consider that the synthesis of gas C takes place in a 2.0 L container, and assume that the composition of the starting reaction mixture is as follows: 4.0 moles of A, 4.0 moles of B, and 0 moles of C.
A(g) + B(g) 2C(g) Kc = 25.0
The system reaches equilibrium state and next the volume of the container is increased to 10.0 L. What is finally the % yield of the reaction?