ANS: 19. The equilibrium constant, Kp, for the reaction below is 0.24 at 1500°C. SO,(g) +NO(g) SO (g) +NO-(g) If 0.30 atm of sulfur trioxide, 0.15 atm of nitrogen monoxide, 0.55 atm of sulfur dioxide, and 0.030 atm of nitrogen dioxide are mixed, what changes in pressure will occur? a. The pressures of SO, and NO decrease; the pressures of SO2 and NO2 increase. b. The pressures of SO, and NO increase; the pressures of SO2 and NO2 decrease c. The pressures of SO, and SO2 decrease; the pressures of NO and NO2 increase. d. The pressures of SOs and SO2 increase; the pressures of NO and NO2 decrease. e Equal numbers of particles exist on both sides of the equation; no reaction will occur.