Refer to the following equation.
C6H6(g)+3H2(g) ⇄ C6H12(g)
When 1.00 MC6H6 and 3.00 MH2 are in a container and allowed to reach equilibrium at elevated temperature, the resulting mixture contains 0.137 M C6H6}. What is the value for KC at this temperature?
Hit, you are given an equilibrium value, and you can use it to find other equilibrium values which you need to find KC
7.72 × 10^{-2}
6.37 × 10^{-2}
3.05 × 10^{-4}
9.50 × 10^{-1}
2.36 × 10^{4}
0.658
At a certain temperature, 0.4411 mol of N2 and 1.521 mol of H2 are placed in a 3.00 L container. N2(g)+3H2(g)−⇀↽−2NH3(g) At equilibrium, 0.1601 mol of N2 is present. Calculate the equilibrium constant, Kc.
At a certain temperature, the equilibrium constant, Kc , is 0.00401 for the reaction Cl2(g)−⇀↽−2Cl(g) A. If 3.05 g Cl2Cl2 is placed in a 3.00 L flask at this temperature, what are the equilibrium concentrations of Cl2 and Cl? B. Following the establishment of equilibrium in part A, the volume of the flask is suddenly increased to 4.50 L while the temperature is held constant. What are the new equilibrium concentrations of Cl2 and Cl? C. Following the establishment of...
At elevated temperatures N2 and H2 react according to the following equation: N2(g) + 3H2(g) → 2NH3(g) When 1.000 mol of N2 and 2.800 mol of H2 were placed in a 10.00 L vessel at 600.0 K and allowed to come to equilibrium, the mixture was found to contain 0.514 mol of NH3. What is the value of KC?
A) For the Haber process, N2(g) + 3H2(g) <---> 2NH3(g), Kp = 4.34 x 10–3 at 300oC. Pure NH3 is placed in a 2.00 L flask and is allowed to reach equilibrium at 300oC. There are 3.00 g NH3 in the equilibrium mixture. Calculate the mass (in g) of H2 in the equilibrium mixture. B) The value of Kc for the reaction is 1.2 . The reaction is started with [H2 ]0 = 0.76 M, [N2]0 = 0.60 M and...
The value of the equilibrium constant Kc for the reaction N2(g)+3H2(g)⇌2NH3(g) changes in the following manner as a function of temperature Temperature (∘C) Kc 300 9.6 400 0.50 500 0.058 Part A Use the standard enthalpies of formation given in Appendix C to determine the ΔH for this reaction at standard conditions. Express your answer in kilojoules to two decimal places. Part B If 0.027 mole of gaseous NH3 is added to a 1.00 L container and heated to 500 ∘C,...
3. Given Kc or Kp for the following reactions, what is the value of Kp or Ke? (a) 12 (g) + Cl2 (a) 22ICI (g): Kc = 2.0 x105 at 25°C (b) N204(g) + 2NO2(0); Kc = 0.90 at 120 °C (c) CaCO3(s) = Cao (s) + CO2 (ox Kp = 1.67 x 102 at 740 °C 4. A container contains an equilibrium mixture of H2 (g), 12(g), and Hl) at 721 K. The concentration of each substance present at...
The following reaction has an equilibrium constant, Kc, of 1.80 x 10-4 at a particular temperature: 2NOCl (g) → 2 NO (g) + Cl2 (g) You have a container in which the concentration of HOCl is 0.99 M, the concentration of NO is 0.45 M, and the concentration of Cl2 is 0.67 M. (a) Calculate the value of the reaction quotient Q. (b) Is the system at equilibrium? If not, predict which way (right or left) the reaction will proceed...
10) Kc is 1.67 1020 at 25°C for the formation of iron(III) oxalate complex ion: Fe3+(aq) + 3 C2042-(aq) = [Fe(C204)3β-(aq). If 0.160 M Fe3+ is initially mixed with 1.00 M oxalate ion, what is the concentration of Fe3+ ion at equilibrium? D) 6.81x 10-21 M A) 1.47 x 1020 M C) 1.04 x 1021 M B) 0.0100 M 11) Cyclohexane, C6H12, undergoes a molecular rearrangement in the presence of AlCl3 to form methylcyclopentane, CH3C5H9, according to the equation: C6H12-...
1a) For the reaction 2CH4(g)⇌C2H2(g)+3H2(g) Kc = 0.135 at 1733 ∘C . What is Kp for the reaction at this temperature? 1b) For the reaction N2(g)+3H2(g)⇌2NH3(g) Kp = 5.20×10−3 at 270. ∘C . What is Kc for the reaction at this temperature? 1c) Given the two reactions H2S⇌HS−+H+, K1 = 9.74×10−8, and HS−⇌S2−+H+, K2 = 1.53×10−19, what is the equilibrium constant Kfinal for the following reaction? S2−+2H+⇌H2S 1d) Given the two reactions PbCl2⇌Pb2++2Cl−, K3 = 1.86×10−10, and AgCl⇌Ag++Cl−, K4 = 1.19×10−4, what is the...
7) Consider the reaction: COCl2(g) ↔ CO(g) + Cl2(g) Kc = 2.2 × 10–6 COCl2 = 98.91 g/mol CO = 28.01 g/mol Cl2 = 70.90 g/mol A reaction mixture in a 3.00 L flask at a certain temperature initially contains 93.94 g COCl2(g). Calculate the equilibrium concentrations of all species in the reaction mixture at this temperature.