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?
If a first-order reaction has a rate constant of 2.11 x 10-1 s-1 at a temperature...
Variation of the rate constant with temperature for the first-order reaction 2N2(g) + O(g) → 2N2O4(g) is given in the following table. Determine the activation energy and pre-exponential factor for the reaction. What would be the rate constant at 350 K? Temperature / K Rate Constant / s-1 273 7.87 x 103 298 3.46 x 105 318 4.98 x 106 338 4.87 x 107 What is the activation energy in kJ/mol? Do not enter the units with your answer. What...
14) The rate constant of a first-order reaction is 3.00 × 10^−4 s^−1 at 350.°C. If the activation energy is 149 kJ/mol, calculate the temperature at which its rate constant is 7.60 × 10^−4 s^−1. _____ *C
3) The rate constant of a first order reaction is 2.6 x 10+ s' at 255 °C. If the activation energy is 99.9 KJ/mol, calculate the temperature at which its rate constant is 4.8 x 104 sl.
The rate constant of a first-order reaction is 3.90 times 10^-4 s^-1 at 350. degreeC. If the activation energy is 131 kJ/mol, calculate the temperature at which its rate constant is 7.30 times 10^-4 s^-1. degreeC
For the first-order reaction: Ag) — Bg) the rate constant is k-6x 104 s-at -10°C, and the activation energy is 64 kJ/mol. What is the rate constant at 20°C? (R-8.314 J/mol x K) 0 a. 6x 10451 b.4.3 x 1045-1 OC. 4.1 x 10851 Od. 1.2 x 10051 Oe-2.2 x 1045-1
Ch.19 #4 The rate constant of a first-order reaction is 3.90 x 10-45 at 350°C. If the activation energy is 123 kJ/mol, calculate the temperature at which its rate constant is 9.65 x 10-457. °C
12. The first-order rate constant for the reaction of methyl chloride (CH3Cl) with water to produce methanol (CH3OH) and hydrochloric acid (HCl) is 3.32 × 10−10 s−1 at 25°C. Calculate the rate constant at 52.1°C if the activation energy is 116 kJ/mol. _____ ×10^____ s−1 (Enter your answer in scientific notation.) 14. The rate constant of a first-order reaction is 2.75 × 10−4 s−1 at 350.°C. If the activation energy is 101 kJ/mol, calculate the temperature at which its rate constant...
A certain first-order reaction has a rate constant of 1.65 min-1 at 20°C. What is the value of the rate constant at 60°C if the activation energy is 75.5 kJ/mol? The rate constant is 105 times bigger at 300 K than at 200K. Explain why reaction rate increases with temperature? At 227°C, the reaction: SO2Cl2(g) SO2(g) + Cl2(g), has an equilibrium constant of KC = 2.99×10-7. If a reaction mixture initially contains 0.175 M SO2Cl2, what is the equilibrium concentration...
A certain first-order reaction has a rate constant k = 3.21 X 10-2 s-1 at 20oC. What is the value of the rate constant at 100oC if Ea = 81.5 kJ/mol? (R = 8.314 J/mol K) Write your answer using 3 significant figures.
Part A) A certain first-order reaction has a rate constant of 2.40×10−2 s−1 at 25 ∘C. What is the value of k at 60 ∘C if Ea = 74.0 kJ/mol ? Express your answer using two significant figures. Part B) Another first-order reaction also has a rate constant of 2.40×10−2 s−1 at 25 ∘C. What is the value of k at 60 ∘C if Ea = 135 kJ/mol ? Express your answer using two significant figures.