Chemistry Homework Help

Browse Homework Solutions

161 solutions

Arrhenius Equation

Q. The gas-phase reaction of NO with F2 to form NOF and F has an activation energy of Ea=6.3kJ/mol and a frequency factor of A=6.0×108M−1s−1. The reaction is believed to be bimolecular: NO(g)+F2(g)→NOF(g)+F(g). Calculate the rate constant at 106 ∘C.

Solved • Mar 31, 2020

Arrhenius Equation

Q. What Activation Energy, Ea, results in a doubling of the reaction rate with a 10°C increase in temperature from 20° to 30°C?

Solved • Mar 30, 2020

Arrhenius Equation

Q. Calculate the activation energy?

Solved • Mar 22, 2020

Arrhenius Equation

Q. A student is studying the initial rate of decomposition of calcium carbonate by collecting the carbon dioxide gas that is released. The overall reaction is: CaCO3 (s) - > CaO (s) + CO2 (g) At a temperature of 245 °C the reaction gives off 44.0 mL of CO2 in the initial 20.0 seconds of the reaction. At a temperature of 181 °C, the reaction gives off 7.75 mL of CO2 in the initial 20.0 seconds of the reaction. Calculate the activation energy for the reaction.

Solved • Mar 22, 2020

Arrhenius Equation

Q. Consider the reaction: 2B - > C + 3D. In one experiment it was found that at 300 K the rate constant is 0.134 M-1s-1. A second experiment showed that at 450 K, rate constant was 0.569 M-1s-1. Determine the activation energy for the reaction in KJ.

Solved • Mar 22, 2020

Arrhenius Equation

Q. For a given reaction, the rate constant, k, was determined at different temperatures. To obtain a linear graph, one should plot:

Solved • Mar 22, 2020

Arrhenius Equation

Q. Q: Use the information supplied in the image attached, Graph A, to determine the Energy of activation for the reaction via the Arrhenius equation. Explain how the graph on the right is, or is not, related to the Graph B below

Solved • Mar 22, 2020