Consider the 1st order reversible reaction AB, where the rate constant for the forward reaction (A...

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Consider the 1st order reversible reaction AB, where the rate constant for the forward reaction (A goes to B) is k₁, and the rate constant for the reverse reaction (B goes to A) is k₂. Imagine that this reaction has the following values for the rate constants at 25 °C: k₁ = 3.36 x 10¹² s¹, and k₂ = 8.2 x 103 5¹. How long will it take for the concentration of reactant A to be 1/2 of the initial (or starting) concentration of A, which is called A,? Enter your answer in terms of seconds to the nearest ones. Assume the temperature is 25 °C. Also, the value of R, the gas constant, is 1.987 cal/K-mol. Hint: you should use the equation for the 1st order reversible reaction, which you are not expected to know, and which is given below. [A] = Question 17 [A], (k₁ +k₂) k obs -(k₂ +k₁e (₁¹₂))) What is the height of the activation barrier AG (or E₁) (in kcal/mol to the nearest tenth) of an irreversible 1 order process at 25 °C when the observed rate of the process is 185 s¹? Note that Boltzmann's constant is 1.381 x 10 23 J/K and Planck's constant is 6.626 x 10-34 J-s. Assume that x is one (or unity). Also, the gas constant, R. is 1.987 x 10-3 kcal/K-mol. Hint: you should use Eyring's equation. which is given below. 1 pts Kk TAG² RT e h Consider the 1st order reversible reaction AB, where the rate constant for the forward reaction (A goes to B) is k₁, and the rate constant for the reverse reaction (B goes to A) is k₂. Imagine that this reaction has the following values for the rate constants at 25 °C: k₁ = 3.36 x 10¹² s¹, and k₂ = 8.2 x 103 5¹. How long will it take for the concentration of reactant A to be 1/2 of the initial (or starting) concentration of A, which is called A,? Enter your answer in terms of seconds to the nearest ones. Assume the temperature is 25 °C. Also, the value of R, the gas constant, is 1.987 cal/K-mol. Hint: you should use the equation for the 1st order reversible reaction, which you are not expected to know, and which is given below. [A] = Question 17 [A], (k₁ +k₂) k obs -(k₂ +k₁e (₁¹₂))) What is the height of the activation barrier AG (or E₁) (in kcal/mol to the nearest tenth) of an irreversible 1 order process at 25 °C when the observed rate of the process is 185 s¹? Note that Boltzmann's constant is 1.381 x 10 23 J/K and Planck's constant is 6.626 x 10-34 J-s. Assume that x is one (or unity). Also, the gas constant, R. is 1.987 x 10-3 kcal/K-mol. Hint: you should use Eyring's equation. which is given below. 1 pts Kk TAG² RT e h

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To determine the time it takes for the concentration of reactant A to be half of the initial concent... View the full answer