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In the following reaction: N,04(8) Na(g) +20,(g) + energy, if the temperature is increased the equilibrium...
Laboratory 11, Equilibrium Control of a Reaction Name Chemical Equilibrlum: equilibrium is when the rates of...
Laboratory 11, Equilibrium Control of a Reaction Name Chemical Equilibrlum: equilibrium is when the rates of the forward and reverse reactions are equal. Therefore, the concentration of all reactants and products remain constant. This is not to say that the reaction has ceased. It is a dynamic situation at chemical equilibrium with the rate of disappearance of reactants the same as the rate of appearance of reactants through the reverse reaction (the same for the rate of disappearance and appearance...
20. If K =(0.92) at a (150°C) for the equilibrium reaction: CO(g) + 3H2(g) CH(g) +...
20. If K =(0.92) at a (150°C) for the equilibrium reaction: CO(g) + 3H2(g) CH(g) + H2O(g) The K of the reaction is : A) 5.63x 104 B) 2.32 x10+ C) 4.20 x105 D ) 3.29 x 109. Putor (*): 1. Reaction in which entire amount of the reactants is not converted into products is termed as reversible reaction ( ). 2. For exothermic reactions raising the temperature causes a shift to the right (X). 3. If the number of...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward reaction stops only the reverse reaction stops both the forward and reverse reactions stop the rate constants for the forward and reverse reactions are equal the rates of the forward and reverse reactions are equal 2. A chemical equilibrium may be established by starting a reaction with reactants only. d. any quantities of reactants and products. products only. e. all the above equal quantities...
Consider the equilibrium in the reaction 3O2(g) 2O3(g), with reaction H 285.4 103 J...
Consider the equilibrium in the reaction 3O2(g) 2O3(g), with reaction H 285.4 103 J mol–1 at 298 K. Assume that reaction H is independent of temperature. a) Without doing a calculation, predict whether the equilibrium position will shift toward reactants or products as the pressure is increased. b) Without doing a calculation, predict whether the equilibrium position will shift toward reactants or products as the temperature is increased. c) Calculate KP at 550 K. d) Calculate Kx at...
A reaction that has a positive AH and a positive AS will be spontaneous at high...
A reaction that has a positive AH and a positive AS will be spontaneous at high temperatures spontaneous at low temperatures spontaneous at all temperatures nonspontaneous at all temperatures QUESTION 6 Which of the following statements is FALSE? Keg for a reaction written in reverse is the reciprocal of the key for the forward reaction A reaction quotient (Q) larger than Keq means that the reaction will shift toward reactants Chemical equilibrium indicates that reactants and products are present in...
Which of the following is true about the following chemical reaction at equilibrium? PICK ALL THAT...
Which of the following is true about the following chemical reaction at equilibrium? PICK ALL THAT APPLY. C6H12O6 + 6O2 6CO2 + 6H2O + Energy A. The concentration of H2O equals the concentration of O2. B. The rate of the forward reaction, reactants to products, equals the rate of the reverse reaction, products to reactants. C. The C-C bonds hold more energy in C6H12O6 than the C-O bonds in CO2. Hint: think teter-toter. D. The concentration of O2 is changing...
For the reaction H2 (g) + Br2 (g) → 2 HBr (g) AH° = - 104...
For the reaction H2 (g) + Br2 (g) → 2 HBr (g) AH° = - 104 kJ Which of the following statements are correct? 1) Increasing the temperature will make the equilibrium ratio [HBr] / [H2] decrease. 2) At equilibrium the specific rate constant for the forward reaction must equal the specific rate constant for the reverse reaction. 3) At equilibrium the rate of the forward reaction will equal the rate of the reverse reaction. 4) A catalyst that increases...
8) Consider the following generic reaction. The equilibrium constant is 2500. If [Reactants] = 1.2 M...
8) Consider the following generic reaction. The equilibrium constant is 2500. If [Reactants] = 1.2 M (5pts) and [Products] = 0.8 M, is the reaction at equilibrium? If not, which direction will the reaction proceed to reach equilibrium? Reactants - Products Yes, the reaction is at equilibrium It will proceed in the forward direction to form more products It will proceed in the reverse direction to form more reactants There is not enough information
N2(g) + O2(g) equilibrium reaction arrow 2 NO(g); Kc = 5.6 ✕ 10−4 at 2098 K...
N2(g) + O2(g) equilibrium reaction arrow 2 NO(g); Kc = 5.6 ✕ 10−4 at 2098 K (a) What is the value of Kc for the reaction 2 NO(g) equilibrium reaction arrow N2(g) + O2(g) at the same temperature? (b) What is the value of Kc for the reaction 1/2 N2(g) + 1/2 O2(g) equilibrium reaction arrow NO(g) at the same temperature? (c) Does the equilibrium in (a) favor the reactant or the products? reactant products (d) Does the equilibrium in...
8. a. Balance and write the equilibrium constant for CO(g)+ 02(g) = Co:(g) b. If the...
8. a. Balance and write the equilibrium constant for CO(g)+ 02(g) = Co:(g) b. If the concentration of CO is increased, will the equilibrium shift toward products or reactants? Circle the correct answer. c. If the pressure in the reaction vessel is increased, will the equilibrium shift toward products or reactants? Circle the correct answer d.Assume the BDE for CO is 257 kcal/mol (and the other BDES are those given above). If heat is added to the vessel, will the...
Laboratory 11, Equilibrium Control of a Reaction Name Chemical Equilibrlum: equilibrium is when the rates of the forward and reverse reactions are equal. Therefore, the concentration of all reactants and products remain constant. This is not to say that the reaction has ceased. It is a dynamic situation at chemical equilibrium with the rate of disappearance of reactants the same as the rate of appearance of reactants through the reverse reaction (the same for the rate of disappearance and appearance...
20. If K =(0.92) at a (150°C) for the equilibrium reaction: CO(g) + 3H2(g) CH(g) + H2O(g) The K of the reaction is : A) 5.63x 104 B) 2.32 x10+ C) 4.20 x105 D ) 3.29 x 109. Putor (*): 1. Reaction in which entire amount of the reactants is not converted into products is termed as reversible reaction ( ). 2. For exothermic reactions raising the temperature causes a shift to the right (X). 3. If the number of...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward reaction stops only the reverse reaction stops both the forward and reverse reactions stop the rate constants for the forward and reverse reactions are equal the rates of the forward and reverse reactions are equal 2. A chemical equilibrium may be established by starting a reaction with reactants only. d. any quantities of reactants and products. products only. e. all the above equal quantities...
A reaction that has a positive AH and a positive AS will be spontaneous at high temperatures spontaneous at low temperatures spontaneous at all temperatures nonspontaneous at all temperatures QUESTION 6 Which of the following statements is FALSE? Keg for a reaction written in reverse is the reciprocal of the key for the forward reaction A reaction quotient (Q) larger than Keq means that the reaction will shift toward reactants Chemical equilibrium indicates that reactants and products are present in...
For the reaction H2 (g) + Br2 (g) → 2 HBr (g) AH° = - 104 kJ Which of the following statements are correct? 1) Increasing the temperature will make the equilibrium ratio [HBr] / [H2] decrease. 2) At equilibrium the specific rate constant for the forward reaction must equal the specific rate constant for the reverse reaction. 3) At equilibrium the rate of the forward reaction will equal the rate of the reverse reaction. 4) A catalyst that increases...
8) Consider the following generic reaction. The equilibrium constant is 2500. If [Reactants] = 1.2 M (5pts) and [Products] = 0.8 M, is the reaction at equilibrium? If not, which direction will the reaction proceed to reach equilibrium? Reactants - Products Yes, the reaction is at equilibrium It will proceed in the forward direction to form more products It will proceed in the reverse direction to form more reactants There is not enough information
8. a. Balance and write the equilibrium constant for CO(g)+ 02(g) = Co:(g) b. If the concentration of CO is increased, will the equilibrium shift toward products or reactants? Circle the correct answer. c. If the pressure in the reaction vessel is increased, will the equilibrium shift toward products or reactants? Circle the correct answer d.Assume the BDE for CO is 257 kcal/mol (and the other BDES are those given above). If heat is added to the vessel, will the...
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