3. Given: SO -NO => NO-SO K - 25.0 A reaction vessel contains the following instantaneous concentrations (all in mol/L): [SO]=0.002; [NO]=0.005: [NO] = 0.0100: [SO]=0.0400 a) Is the system at equilibrium? Show your work. [5] b) If not, in which direction will the reaction have to proceed to reach equilibrium? [1]