The mechanism for a reaction is given below (In image). Use it to answer the questions that follow. a) Which step is the rate determining step? b) What is the molecularity of the rate determining step? c) Write the net thermochemical equation. d) Write the rate law expression.  e) Which molecule(s) would be classified as intermediate(s)?

Ch. 14, 54. A reaction indicated by the chemical equation below was monitored as a function of time: AB → A+B A plot of 1/[AB] versus time yields a straight line with a slope of 0.055 M-¹ s-¹. a) Determine the rate constant for this reaction (assume the temperature does not change). b) Write the rate law equation for the reaction. c) What is the half-life of the reaction if the initial concentration of AB is 0.550 M? d) If the initial concentration of AB is 0.250 M, what are the molar concentrations of A and B after 75 s?

Kinetics Broadly speaking, the factors that influence chemical reaction rates may be summarised as follows.Chemical nature of reactants (e.g. is the chemical reaction thermodynamically “downhill” so that it can occur spontaneously at all?)Reactant Concentration (or pressure for a gas)Physical state of reactants (e.g. phase, or surface area of solids)Presence of catalystTemperature  For each of the following observations, which one of the five factors is most important, and briefly explain how/why that is the case.  (a) The ability to sustain aerobic exercise is limited by the amount of haemoglobin in the blood.  (b) Non-starch polysaccharides are large complex carbohydrates, and an important source of dietary fibre. Their chemical energy content is similar to other carbohydrates like sucrose. These molecules do not undergo respiration via by human digestion, but some bacteria have specialised proteins that can process non-starch polysaccharides. (c) Potato is made edible by cooking it…

A two-step reaction is spontaneous in the forward direction. The second step of the reaction is rate determining.  Draw a graph of energy vs. reaction coordinate for the reaction. Label the activation of each forward step and the transition states of each step.