Consider the reaction: 2 H2O2(g) ⇄ 2 H2O(g) + O2(g). 1.75 moles of H2O2 are initially placed in a 2.50 L reaction vessel. When equilibrium is reached 1.20 moles of H2O2 are left. Calculate the equilibrium constant Kc.
5.5×10-3
2.4×10-3
2.0×10-4
2.3×10-2
3.9×10-4
Consider the reaction: 2 H2O2(g) ⇄ 2 H2O(g) + O2(g). 1.75 moles of H2O2 are initially...
Q(1) During a chemical reaction, what defines when the concentrations of the reactants and products reach a constant level? A) Elementary process B) Rate constant C) Reversible reaction D) Equilibrium E) Rate law Q(2) Which is the correct equilibrium constant expression for the following reaction? FeO(s) + H2(g) - Fe(s) + H2O(g) A) Ke = [H2O] / [H2] B) Ke=[Fe][H2O] / [Fe2O3] [H2] C) Ke=[Fe) (H20] / [Fe2O3] D) Kc = [Hz] / [H2O] E) Ke= [Fe2O3] [H2] / [Fe][H2O]...
1. 1.75 moles of H202 were placed in a 2.50 L reaction chamber at 307°C. After equilibrium was reached, 1.20 moles of H202 remained. Calculate the equilibrium constant, Kc, for the reaction. 2. Phosgene, COCl,, a poisonous gas, decomposes according to the equation COC2(g) CO(g)+ Cl2(g) Calculate Kp for this reaction if Kc- 0.083 at 900°C. K K.(PT) 3. Calculate Kc for the reaction 2HI(g) H2(g) +12(g) given that the concentrations of each species at equilibrium are as follows: [HI...
Consider the following reaction: 2 H2O(g) + 2 SO2(g) ↔ 2 H2S(g) + 3 O2(g) A reaction mixture initially contains 2.8 M H2O and 2.6 M SO2. Determine the equilibrium concentration of H2S if Kc for the reaction at this temperature is 1.3 × 10-6. Consider the following reaction: 2 H2O(g) + 2 SO2(g) ↔ 2 H2S(g) + 3 O2(g) A reaction mixture initially contains 2.8 M H2O and 2.6 M SO2. Determine the equilibrium concentration of H2S if Kc...
At 1000 °C, for the reaction: 2 H2O(g) ↔ 2 H2(g) + O2(g) Kc = 7.32 x 10-18, what will be the [H2(g)] at equilibrium if 1.00 mol of H2O(g) are placed in a 10.0 L vessel?
Under which of the following initial conditions would the reaction 2 H2O2(l) 2 H2O(l) + O2(g) NOT be able to acheive equilibrium? a. H2O2(l) is added to the flask. b. H2O2(l) and H2O(l) are added to the flask. c. H2O2(l) and O2(g) at a pressure larger than Kp are added to the flask. d. They can all achieve equilibrium.
A sealed reaction vessel initially contains 1.632x102 moles of water vapor and 1.113x102moles of COlg H2O(g) +Co(g)H2(g) +CO2(g After the above reaction has come to equilibrium, the vessel contains 8.326x10-3 moles of CO2lg) 4th attempt hi See Periodic Table See Hint Feedback What is the value of the equilibrium constant Kcof the reaction at the temperature of the vessel? 2.487186887
1) For the equilibrium 2 NO(g) + 3 H2O(g) <--> 2 NH3(g) + 4 O2(g), Kp = 0.244 at 140 K. What is Kc at 1400 K for the equilibrium NH3(g) + 2 O2(g) <--> NO(g) + 3/2 H2O2 (g)? a) 2.02 b) 21.7 c) 218 d) 0.244
For the following reaction, 0.500 M of COCl2 is placed in a reaction vessel. Calculate the equilibrium concentrations of all gases at equilibrium. COCl2(g) 2 CO(g) + Cl2(g) Kc = 1.70 x 10-4 4 NH3(g) + 3 O2(g) = 2 N2(g) + 6 H2O(g) When 0.256 g of NH3 and 0.480 g if O2 are initially placed in a 1.00 L container at a certain temperature, the N2 concentration at equilibrium is 1.96 x 10 M. Calculate K, for the...
2 NO (g) equilibrium arrow N2 (g) + O2 (g) Initially, 0.75 M NO is placed in a reaction vessel and the reaction is allowed to reach equilibrium. If the equilibrium constant for this reaction is 0.463, what is the equilibrium concentration of NO?
For the reaction I2(g) + Br2(g) ⇌ 2 IBr(g) A vessel initially contains 2.50 M I2 and 2.50 M Br2. Determine the equilibrium concentration of IBr if KC for the reaction at this temperature is 3.27.