3. A reaction has a rate constant of 3.15 x 10 -4 L mol -1 min -1 at 25 °C, and a rate constant of 3.72 x 10 -3 L mol -1 min -1 at 40 °C. What is the activation energy for the reaction? Give your answer to 3 significant figures.
A reaction has a rate constant of 7.85x 10 -6 L mol -1 min -1 at 30 °C, and a rate constant of 1.26 x 10 -5 L mol -1 min -1 at 35 °C. What is the activation energy for the reaction? Give your answer to 3 significant figures.
1.At 25 °C, a reaction produces a product at the rate of 0.880 mol/Lhr. if the activation energy is 80 KJ/mol what will the reaction rate be at 49 °C? 3. A reaction has a rate constant of 1.34 x 10-3 L mol-1min-1 at 25 °C, and a rate constant of 1.61 x 10-2 L mol-1min-1 at 45 °C. What is the activation energy for the reaction? Give your answer to 3 significant figures.
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...
4. The rate constant for the reaction rate constant for the reaction 3A 4B is 2.50 x 10-3 L mol-min". How long will take the concentration of A to drop from 0.75 M to 0.50 M? (6 points)
Be sure to answer all parts. The rate constant of a reaction is 2.80 x 10 5 L/mol's at 195°C and 6.70 x 10" L/molts at 258°C. What is the activation energy of the reaction? Enter your answer in scientific notation. x 10_J/mol
A particular reaction has an activation energy, Ea, of 130 kJ/mol. If the rate constant for the reaction is 0.00684 s −1 at 663 °C, at what temperature(in°C) would the rate constant be 0.376 s −1? *Please report 3 significant figures. Numbers only, no unit. No scientific notation.
Assignment 4 Application of Kinetics 1. A reaction AB has rate constant of 10.018 L/mol min) How long does it take for the concentration of A to decrease to to th of its initial concentration of 2.5m? 14 2. The half-life for the decay of C is 5730 years. it emits ß-rays with an energy of 0.16 MeV. A sa. of wood has a72% of its 14 C left. What is the sample age of this word ? 3. when...
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...
QUESTION 18 A particular reaction has an activation energy, Ea, of 108 kJ/mol. If the rate constant for the reaction is 0.00573 s −1 at 498 °C, at what temperature(in°C) would the rate constant be 0.283 s −1? *Please report 3 significant figures. Numbers only, no unit. No scientific notation.
Some reaction has an activation energy of 44 kJ/mol and a rate constant of 4.0 × 10₋4 s-1 at 37 oC. In the presence of a catalyst, the same reaction has an activation energy of 9.1 kJ/mol. Calculate the rate constant (s-1) of the catalyzed reaction at 37 oC. Enter your answer as an integer.