ASSAP PLEASE!!!

A mixture of 0.850 mol of N2 and 0.850 mol of O2 are introduced into a 2.00 L reaction container and allowed to react at a constant temperature. The following equilibrium is established at this temperature: N2(g) + O2(g) + 2NO(g) AH = +180.7 kJ The equilibrium constant, Kc is determined to be 0.640. a) Calculate: 0 the initial and (m) the equilibrium concentrations of Nz, O2 and NO (in M). b) Explain in which direction the above equilibrium will shift using Le Chatelier's principle, when: O N2 is removed, (mi) the concentration of both O2 and NO is doubled, (IM) the container is heated, and (iv) the volume of the container is increased