一道sat2 化学的题目,求高手解答!感激不尽!! For the reaction: 2 NO2(g) ⇄ N2O4(g);Kp = 1.27 at 353 K. If the initial pressure of NO2 was 3.92 atm, and initially there was no N2O4, what are the partial pressures of the gases at equilibrium at 353 K? What is the total gas pressure at equilibrium?