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What are the units of k for the rate la: Rate = k[A], when...
The decomposition of ozone is the stratosphere can occur by the following two-step mechanism: Br +...
The decomposition of ozone is the stratosphere can occur by the following two-step mechanism: Br + O_3 rightarrow BrO + O rightarrow Br + O_2 which species is an intermediate in this mechanism? A. Br B. BrO C. O D. O_3 Calculate K_c for the reaction 2 Hl (g) - H_2 (g) - H_2 (g) + I_2 (g) given that the concentrations of each species at equilibrium are as follows: [HI] = 0.85 mol/L. [I_2] = 0.27 mol/L. A. 5.25...
Calculate (in other words k) for pbl_2 at 25 degree C based on the following data:...
Calculate (in other words k) for pbl_2 at 25 degree C based on the following data: a. 4 times 10^-11 b. 8 s 10^-12 c. 9 s 10^-4 d. 5 times 10^-4 e. None of these What is the activation energy for the formation of ozone? a. 14 kJ b. 392 kJ C 406 kJ d. -14 kJ e. None of these The reaction: 2 HI rightarrow H_2 + I_2, is second order and the rate constant at 800 K...
At 400 K, an equilibrium mixture of H_2, I_2, and HI consists of 0.068 mol H_2,...
At 400 K, an equilibrium mixture of H_2, I_2, and HI consists of 0.068 mol H_2, 0.075 mol I_2, and 0.13 mol HI in a1.00-L flask. What is the value of K_p, for the flowing equilibrium? (R = 0.0821 L middot atm (K - mol)) 2HI_(g) Rightwardsharpoonoverleftwardsharpoon H_2 (g) + I_2 (g) A) 0.039 B) 3.4 C) 26 D) 0.29 E) 8.2 If K = 0.150 for A_2 + 2B Rightwardsharpoonoverleftwardsharpoon 2AB, what is the value of K for the...
1. The dimensions of the SI unit of energy, the Joule (J), are A. K B....
1. The dimensions of the SI unit of energy, the Joule (J), are A. K B. kg m s C. kg m2 s-2 D. kg m-1 s-2 E. kg m2 s-1 2. Natural gas, or methane, is an important fuel. Combustion of one mole of methane releases 802.3 kilojoules of energy. How much energy does that represent in kilocalories? A. 3.36×103 kcal B. 3.357 kcal C. 191.8 kcal D. 0.192 kcal E. 1.918×105 kcal 3. What is the change in...
14) In an exothermic reaction, heat can be considered a A) reactant B) product C) rate...
14) In an exothermic reaction, heat can be considered a A) reactant B) product C) rate D) catalyst E) determinant 15) Any reaction that absorbs 150 kcal of energy can be classified as A) endothermic B) exothermic C) activated D) reduction E) oxidation 16) The is the energy difference between reactants and products in a chemical reaction. A) transition energy B) activation energy C) product energy D) overall energy E) heat of reaction 17) For the reaction of carbon with...
The rate law of a reaction is rate =k[X]³. The units of the rate constant are
1)The rate law of a reaction is rate =k[X]³. The units of the rate constant areL mol-1 s-1mol² L-2 s-1mol L-1S-2L² mol-2 s-1mol L-1S-12)Given the following rate law, how does the rate of reaction change if the concentration of Z is tripled? Rate =k[X]³[Y]²[Z]⁰The rate of reaction will increase by a factor of136803)What data should be plotted to show that experimental concentration data fits a first-order reaction?1 / [reactant] vs. time[reactant] vs. timeln (k) vs. Ealn (k) vs. 1 / Tln [...
The rate law for the decomposition of N2O5 is rate = k[N2O5] If k = 1.0...
The rate law for the decomposition of N2O5 is rate = k[N2O5] If k = 1.0 x 10-5 s-1, what is the reaction rate when the N2O5 concentration is 0.0091 mol L-1? 2.The decomposition of acetaldehyde, CH3CHO, was determined to be a second order reaction with a rate constant of 0.0771 M-1 s-1. If the initial concentration of acetaldehyde is 0.301 M , what will the concentration be after selected reaction times? a. What will the CH3CHO concentration be after...
Consider the following reaction mechanism: step 1: 2 NO_2 rightarrow NO + NO_3 step 2: NO_3...
Consider the following reaction mechanism: step 1: 2 NO_2 rightarrow NO + NO_3 step 2: NO_3 + CO rightarrow NO_2 + CO_2 What intermediate is involved in this mechanism? NO_2 NO NO_3 CO CO_2 Consider the reaction given below: 2 A(g) + 3 B(g) 2 C(g) delta H = 12.5 kJ/mol K_p = 10.0 If a reaction mixture has the following partial pressures: P_A = 1.0 atm P_B = 2.0 atm P_C = 2.0 atm which of the following statements...
Calculate the activation energy of a reaction if the rate constant at 555 K is 3.72...
Calculate the activation energy of a reaction if the rate constant at 555 K is 3.72 times 10^-5 and at 761 K it is 2.95 times 10^-3. Calculate the rate constant at 70 degree C for the reaction A + 3B rightarrow 2C given that the rate constant of the reaction is equal to 3.5 times 10^-1 M^-4 s^-1 at 95 degree C. (Ea = 142 kJ/mol)
The reaction NO(g) + 7/2 Cl_2(g) rightarrow NOCl(g) is first-order in [Cl2] and second order with...
The reaction NO(g) + 7/2 Cl_2(g) rightarrow NOCl(g) is first-order in [Cl2] and second order with respect to [NO]. Under a given set of conditions, the initial rate of this reaction is 6.20 times 10^-6 mol/L s. What is the rate of this reaction if the concentration of NO is doubled and the concentration of Cl_2 is reduced to half the original value? 6.20 times 10^-6 mol/L s 2.48 X 10_5 mol/L s 1.24 times 10^-5 mol/L s 4.96 times...
The decomposition of ozone is the stratosphere can occur by the following two-step mechanism: Br + O_3 rightarrow BrO + O rightarrow Br + O_2 which species is an intermediate in this mechanism? A. Br B. BrO C. O D. O_3 Calculate K_c for the reaction 2 Hl (g) - H_2 (g) - H_2 (g) + I_2 (g) given that the concentrations of each species at equilibrium are as follows: [HI] = 0.85 mol/L. [I_2] = 0.27 mol/L. A. 5.25...
Calculate (in other words k) for pbl_2 at 25 degree C based on the following data: a. 4 times 10^-11 b. 8 s 10^-12 c. 9 s 10^-4 d. 5 times 10^-4 e. None of these What is the activation energy for the formation of ozone? a. 14 kJ b. 392 kJ C 406 kJ d. -14 kJ e. None of these The reaction: 2 HI rightarrow H_2 + I_2, is second order and the rate constant at 800 K...
At 400 K, an equilibrium mixture of H_2, I_2, and HI consists of 0.068 mol H_2, 0.075 mol I_2, and 0.13 mol HI in a1.00-L flask. What is the value of K_p, for the flowing equilibrium? (R = 0.0821 L middot atm (K - mol)) 2HI_(g) Rightwardsharpoonoverleftwardsharpoon H_2 (g) + I_2 (g) A) 0.039 B) 3.4 C) 26 D) 0.29 E) 8.2 If K = 0.150 for A_2 + 2B Rightwardsharpoonoverleftwardsharpoon 2AB, what is the value of K for the...
14) In an exothermic reaction, heat can be considered a A) reactant B) product C) rate D) catalyst E) determinant 15) Any reaction that absorbs 150 kcal of energy can be classified as A) endothermic B) exothermic C) activated D) reduction E) oxidation 16) The is the energy difference between reactants and products in a chemical reaction. A) transition energy B) activation energy C) product energy D) overall energy E) heat of reaction 17) For the reaction of carbon with...
Consider the following reaction mechanism: step 1: 2 NO_2 rightarrow NO + NO_3 step 2: NO_3 + CO rightarrow NO_2 + CO_2 What intermediate is involved in this mechanism? NO_2 NO NO_3 CO CO_2 Consider the reaction given below: 2 A(g) + 3 B(g) 2 C(g) delta H = 12.5 kJ/mol K_p = 10.0 If a reaction mixture has the following partial pressures: P_A = 1.0 atm P_B = 2.0 atm P_C = 2.0 atm which of the following statements...
Calculate the activation energy of a reaction if the rate constant at 555 K is 3.72 times 10^-5 and at 761 K it is 2.95 times 10^-3. Calculate the rate constant at 70 degree C for the reaction A + 3B rightarrow 2C given that the rate constant of the reaction is equal to 3.5 times 10^-1 M^-4 s^-1 at 95 degree C. (Ea = 142 kJ/mol)
The reaction NO(g) + 7/2 Cl_2(g) rightarrow NOCl(g) is first-order in [Cl2] and second order with respect to [NO]. Under a given set of conditions, the initial rate of this reaction is 6.20 times 10^-6 mol/L s. What is the rate of this reaction if the concentration of NO is doubled and the concentration of Cl_2 is reduced to half the original value? 6.20 times 10^-6 mol/L s 2.48 X 10_5 mol/L s 1.24 times 10^-5 mol/L s 4.96 times...
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