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You have a process where A= B and initially the forward rate constant is equal to...
You have a process where А е в and initially the forward rate constant is equal...
You have a process where А е в and initially the forward rate constant is equal to 10.3 s-1 and the reverse rate constant is equal to 17.8 5-1. Suddenly, the temperature is changed from 285.5 K to 325.1 K. If the activation energy of the forward process is 47.0 kJ mol-1, and the activation energy of the reverse process is 53.7 kJ mol-1, determine the time constant, t that describes the time it will take for the system to...
2. a) The forward rate constant for an elementary solution-phase reaction is 100 sl, and the...
2. a) The forward rate constant for an elementary solution-phase reaction is 100 sl, and the reverse rate constant is 0.1 M's!. What is the standard Gibbs free energy change, AG", for this reaction? The temperature is 300 K. b) For the same reaction, the free energy of activation, AG , for the forward reaction is 50 kJ/mole. What is the activation free energy, AG,, for the reverse reaction? c) If the solvent is changed to one that interacts with...
d listing r. (Individ For a particular first-order reaction, it takes 24 minutes for the concentration...
d listing r. (Individ For a particular first-order reaction, it takes 24 minutes for the concentration of the reactant to decrease to 25% of its initial value, what is the value for rate constant (in S-1) for the reaction? A) 2.0-104 s-1 B)9.6 x 10-4 s-1 C) 1.2 × 10-2 s-1 D)5.8 102s-1 12. In the first order reaction A → products, [A1-0.400 M initially and 0250 M after 15.0 mun, what willl after 175 min? e A) 1.67-10-3 M...
1) Calculate the activation energy in kJ/mol for the following reaction if the rate constant for...
1) Calculate the activation energy in kJ/mol for the following reaction if the rate constant for the reaction increases from 93.5 M-1s-1 at 497.7 K to 1349.3 M-1s-1 at 636.7 K. do not include units, but make sure your answer is in kJ/mol! 2) A chemist constructs a plot of ln k vs. 1/T for a chemical reaction. The slope of the trendline for the data is -746 K. What is the activation energy for this reaction in kJ/mol? R...
For a one step reaction, the activation energy for the forward reaction is 40.0 kJ mol-1,...
For a one step reaction, the activation energy for the forward reaction is 40.0 kJ mol-1, and the enthalpy of reaction is -20.0 kJ mol-1. Which statement below is true? a. The activation energy of the forward reaction would be affected to a greater extent than the activation energy of the reverse reaction by addition of a catalyst. b. The value for the enthalpy of reaction would be decreased by addition of a catalyst. c. The reaction is endothermic. d....
1) At equilibrium, \) the rate constants of the forward and reverse reactions are equal B)...
1) At equilibrium, \) the rate constants of the forward and reverse reactions are equal B) all chemical reactions have ceased C) the rates of the forward and reverse reactions are equal D) the value of the equilibrium constant is 1 B) the limiting reagent has been consumed
DV 18. For the formation of 1 mol of nitrosyl chloride at a given temperature, AH...
DV 18. For the formation of 1 mol of nitrosyl chloride at a given temperature, AH -36 kJ. NO(g) + Cl2(g) → NOCI(8) The activation energy for this reaction is 84 kJ/mol. What is the activation energy for the reverse reaction? A) -36 kJ/mol B) 48 kJ/mol C) 84 kJ/mol D) 120 kJ/mol E) -120 kJ/mol 19. The rate constant for a first-order reaction is 1.8 x 10° s at 736 K and 4.0 x 10s at 836 K. What...
For a parallel reaction A goes to B with rate constant k1 and A goes to...
For a parallel reaction A goes to B with rate constant k1 and A goes to C with rate constant k2, you determine that the activation energies are 38.3 kJ/mol for k1 and 169.3 kJ/mol for k2. If the rate constants are equal at a temperature of 316 K, at what temperature (in K) will k1/k2 = 2?
The temperature dependence of the acid-catalysed hydrolysis of penicillin is investigated. This is a first order...
The temperature dependence of the acid-catalysed hydrolysis of penicillin is investigated. This is a first order reaction that only depends on the concentration of the penicillin. The dependence of the rate constant, k, as a function of temperature is given in the following table: Temperature (K) k(s-1) 290 2.9e-5 320 2.61e-4 Determine the activation energy of this reaction. Express your answer in kJ mol-1 to the first decimal place (XX.X). Determine the Arrhenius pre-factor, A for this reaction. Express your...
If a first-order reaction has a rate constant of 2.11 x 10-1 s-1 at a temperature...
If a first-order reaction has a rate constant of 2.11 x 10-1 s-1 at a temperature of 22.3°C, what would the value of k be if the reaction temperature has changed to 43.4 °C given the activation energy is 52.9 kJ/mol?
You have a process where А е в and initially the forward rate constant is equal to 10.3 s-1 and the reverse rate constant is equal to 17.8 5-1. Suddenly, the temperature is changed from 285.5 K to 325.1 K. If the activation energy of the forward process is 47.0 kJ mol-1, and the activation energy of the reverse process is 53.7 kJ mol-1, determine the time constant, t that describes the time it will take for the system to...
2. a) The forward rate constant for an elementary solution-phase reaction is 100 sl, and the reverse rate constant is 0.1 M's!. What is the standard Gibbs free energy change, AG", for this reaction? The temperature is 300 K. b) For the same reaction, the free energy of activation, AG , for the forward reaction is 50 kJ/mole. What is the activation free energy, AG,, for the reverse reaction? c) If the solvent is changed to one that interacts with...
d listing r. (Individ For a particular first-order reaction, it takes 24 minutes for the concentration of the reactant to decrease to 25% of its initial value, what is the value for rate constant (in S-1) for the reaction? A) 2.0-104 s-1 B)9.6 x 10-4 s-1 C) 1.2 × 10-2 s-1 D)5.8 102s-1 12. In the first order reaction A → products, [A1-0.400 M initially and 0250 M after 15.0 mun, what willl after 175 min? e A) 1.67-10-3 M...
1) At equilibrium, \) the rate constants of the forward and reverse reactions are equal B) all chemical reactions have ceased C) the rates of the forward and reverse reactions are equal D) the value of the equilibrium constant is 1 B) the limiting reagent has been consumed
DV 18. For the formation of 1 mol of nitrosyl chloride at a given temperature, AH -36 kJ. NO(g) + Cl2(g) → NOCI(8) The activation energy for this reaction is 84 kJ/mol. What is the activation energy for the reverse reaction? A) -36 kJ/mol B) 48 kJ/mol C) 84 kJ/mol D) 120 kJ/mol E) -120 kJ/mol 19. The rate constant for a first-order reaction is 1.8 x 10° s at 736 K and 4.0 x 10s at 836 K. What...
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