What is the value for KC at this temperature?
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
Homework Answers
At a certain temperature, 0.4411 mol of N2 and 1.521 mol of H2 are placed in...
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....
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...
The value of the equilibrium constant Kc for the reaction N2(g)+3H2(g)⇌2NH3(g) changes in the following manner...
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...
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:...
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)...
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-...
The reaction below is carried out at a different temperature at which Kc=0.055Kc=0.055. This time, however,...
The reaction below is carried out at a different temperature at which Kc=0.055Kc=0.055. This time, however, the reaction mixture starts with only the product, [NO]=0.0100M[NO]=0.0100M, and no reactants. Find the equilibrium concentrations of N2N2, O2O2, and NONO at equilibrium. N2(g)+O2(g)⇌2NO(g)
Consider the following system at equilibrium where H° = 111 kJ, and Kc = 6.30, at...
Consider the following system at equilibrium where H° = 111 kJ, and Kc = 6.30, at 723 K. 2NH3(g) N2(g) + 3H2(g) When 0.22 moles of N2(g) are added to the equilibrium system at constant temperature: please double check answer to make sure its correct, thank you. The value of Kc _________increases.decreases.remains the same. The value of Qc _________is greater than is equal to is less than Kc. The reaction must ? run in the forward direction to restablish equilibrium. run in...
The equilibrium constant, Kc, is calculated using molar concentrations. For gaseous reactions another form of the...
The equilibrium constant, Kc, is calculated using molar concentrations. For gaseous reactions another form of the equilibrium constant, Kp, is calculated from partial pressures instead of concentrations. These two equilibrium constants are related by the equation Kp=Kc(RT)Δn where R=0.08206 L⋅atm/(K⋅mol), T is the absolute temperature, and Δn is the change in the number of moles of gas (sum moles products - sum moles reactants). For example, consider the reaction N2(g)+3H2(g)⇌2NH3(g) for which Δn=2−(1+3)=−2. A) For the reaction 3A(g)+3B(g)⇌C(g) Kc =...
The reaction below is carried out at a different temperature at which Kc=0.055. This time, however,...
The reaction below is carried out at a different temperature at which Kc=0.055. This time, however, the reaction mixture starts with only the product, [NO]=0.0100M [NO]=0.0100M, and no reactants. Find the equilibrium concentrations of N2, O2, and NO at equilibrium. N2(g)+O2(g)⇌2NO(g) Express your answers to three significant figures separated by commas.
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...
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-...
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