General College Chemistry I - Chemical Equilibrium - Assignment | CHEM 112, Assignments of Chemistry

Download General College Chemistry I - Chemical Equilibrium - Assignment | CHEM 112 and more Assignments Chemistry in PDF only on Docsity! Chapter 7 - Chemical Equilibrium 1, Equilibrium concentrations of 0.031, 0.85, and 0.0031 M were measured at 127°C for gascous ammonia, nitrogen, and hydrogen respectively. No(s) + 3H (g) <=> 2NH3(g) a) What is the value of K, for the reaction? [3.8 x 104] b) What is the value of K, at 127°C for 2NH3(g) <=> No(g) + Ho(g)? (2.6 10>} c) What is the value of K, at 127°C for 1/2 Na(g) + 3/2 Hy(g) <=> NH3(g)? [1.9 107] 2. At 1200 K the equilibrium total gas pressure was 36.3 torr when the cquilibrium partial pres- sure of hydrogen was 15.0 torr, What is the value of K,? 3Fe(s) + 4H, 0(g) <=> Fe,04(s) + 4H(g) [4.07] 3. If the equilibrium mixture contains 0.500 atm CO, 0.500 atm H,0, and 1.00 atm CO, what is the partial pressure of the hydrogen when K, = 1.845? CO(g) + H,0(g) <=> CO,(g) + Fa(g) [0.461 atm] -2- 4, Determine the equilibrium concentration of HI when the equilibrium concentrations of H, and I, are both 0,0010 mol LT! and K, =55.6. Ey(g) + Li <=> 2HI(g) [0.0075 mol L7!] 5, Complete the following table for all of the equilibrium concentrations. 4HCl(g) + 02(g) <=> 2Ch(g) + 2H,O(g) I 0.075 mol L*! 0.033 mol L“! 0 0 c E 0.030 mol L? [Cl] = [H,O] = 0. 030, [Oy] = 0.018, [HCl] = 0.015 mol L? 6. For the reaction at 250°C PCIs(g) + Ch(g) <=> PCls(g) the equilibrium concentrations are [PC],} = [Cl,] = 0.280 M and [PCl,] = 1.885 M. a) What is K,? [24.0] b) Whatis K, for PCl; <=> PCI, + Cl,? (0.0416] c} Whatis K, for 2PClz + 2Cl, <=> 2PCI;? [576] d) What is K, for part b)? [1,79]