The frequency factor for a reaction is 1.72x10^10 s^−1.If the rate constant is 5.63x10^4 s^−1 at 300 K, what will the rate constant be at 400K?
a)7.49x106s−1
b)3.96x105s−1
c)4.22x107s−1
d)2.62x104s−1
e)1.32x106s−1
The frequency factor for a reaction is 1.72x10^10 s^−1.If the rate constant is 5.63x10^4 s^−1 at...
Part A: The rate constant for a certain reaction is k = 1.90×10−3 s−1 . If the initial reactant concentration was 0.150 M, what will the concentration be after 7.00 minutes? Part B: A zero-order reaction has a constant rate of 4.60×10−4 M/s. If after 30.0 seconds the concentration has dropped to 8.00×10−2 M, what was the initial concentration? Part C: A certain reaction has an activation energy of 60.0 kJ/mol and a frequency factor of A1 = 7.80×1012 M−1s−1...
Match the following A) rate constant B) frequency factor C) activation energy D) reaction order E) half-life 1) k 2) n, in Rate = k[A]" 3) ti/2 4) Ea 5) A
A reaction has a rate constant of 1.21×10−4 s−1 at 25 ∘C and 0.226 s−1 at 77 ∘C . Part A Determine the activation barrier for the reaction. Express your answer in units of kilojoules per mole and with 3 significant figures. Ea E a = nothing kJ/mol Request Answer Part B What is the value of the rate constant at 18 ∘C ? Express your answer in units of inverse seconds (s−1) and with 3 significant figures. k k...
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#14 Rate Constant and Temperature 1. The rate constant (k) for a reaction was measured as a function of temperature. A plot of lnk versus 1/T (in K) is linear and has a slope of -1.01 x 104 K. Calculate the activation energy for this reaction. 2. The rate constant of a reaction at 32.0oC is 0.0550 s-1. If the frequency factor is 1.20 x 1013 s-1, what is the activation energy? 3. A reaction has a rate constant of...
The rate constant of a reaction at 34 ∘C was measured to be 5.8×10−2 s−1. If the frequency factor is 1.2×1013s−1, what is the activation barrier? Express your answer using two significant figures.
1) The rate constant for the reaction 2 N,Os(9) = 4 NO (9) + O2(9) is reported in units of sl. What is the overall order of the reaction? 2) The rate law for a reaction was reported as rate=k[A] [B][C] with molar concentrations in moles per cubic decimetre and time in seconds. What are the units of k? 3) The rate constant for the pseudo first-order acid- catalysed hydrolysis of glucose is 4.07' 10-s. Calculate the half-life for the...
For a certain reaction the specific rate constant, k, is 1.50 x 10-3 L mol-1 s-1 at 27 °C and 1.50 L mol-1 s-1 at 127 °C. For this reaction, the pre-exponential factor, A, in the Arrhenius equation has the value A. 8.3 x 103 L mol-1 s-1 B. 1.5 x 109 L mol-1 s-1 C. 1.5 x 106 kJ mol-1 D. 9.7 kJ mol-1 E. 1.5 x 10-3 L mol-1 s-1
For a certain reaction the specific rate constant, k, is 1.50 x 10-3 L mol-1 s-1 at 27 °C and 1.50 L mol-1 s-1 at 127 °C. For this reaction, the pre-exponential factor, A, in the Arrhenius equation has the value A. 8.3 x 103 L mol-1 s-1 B. 1.5 x 10-3 L mol-1 s-1 C. 9.7 kJ mol-1 D. 1.5 x 106 kJ mol-1 E. 1.5 x 109 L mol-1 s-1
The decomposition reaction of A to B has a rate constant of 1.49×10-4 s-1: A → 2B How long will it take for the concentration of A to decrease by 18.7%? (answers given in minutes) a)93.6 b)48.2 c) 33.3 d) 97.8 e) 23.1