Question

Consider the following system at equilibrium where AH° = -198 kJ, and K. = 34.5, at 1.15*10' K. 2802(g) + O2(g) 2803(g) If the VOLUME of the equilibrium system is suddenly decreased at constant temperature: The value of K A. increases. B. decreases. C. remains the same. The value of Qc A. is greater than K. B. is equal to K C. is less than K The reaction must: A. run in the forward direction to reestablish equilibrium. B. run in the reverse direction to reestablish equilibrium. C. remain the same. It is already at equilibrium. The number of moles of Oz will: A. increase. B. decrease. C. remain the same.

Answer 1

PAGE NO.: DATE: sal 1 a 50 2t Oa 250₃ cot AH = -192KI Kc = 34.5 Valume is nuo decovased at constant temperature The value of Keromaing some because equilibrium constant tempo only depends on (62 to will try When volume is decreased thon Pressure increases so according Le Chatelier's principle reaction to decrease Pressure so in direction which has lower no ob gaseous Moles, so moves in Farwaard direction moves (62 so Oc must be greater then ke I reaction goes in borward dilection by decreasing 'Volume to rrestablir equilibrium reaction should run in backward direction so The oueaction must orion in the Leverse direction to Incestablish equilibrium

PAGE NO.: DATE: By decisaxing_valumo Iveaction goes in formird direction Seno males' of a decaetano Sal (2) Prelzet (la Play (97 cga cat Valume is sudd Constant temperature Suddenly dewwand (ط)| The value of keremains same The value of Oc is greater then ke 1602 The deaction must run in the reverse direction to establirn equilibrinam 1 dl The of males of Cla decrease Note:> Both Questions has same type of answers because in both dreactions no. of males of garious. Products is less then Moles of garrous reactants no. of