6. Autocatalysis occurs when a reaction product can act as a catalyst for the overall reaction....
2. Kinetics of an Oscillating Reaction Oscillating reactions are a special kind of chemical reactions and are characterized by an elementary reaction in which at least one of the reactant is also a product. An example of a series of elementary reactions of an oscilating reaction is below: ka (a) Identify the autocatalytic reacton i.e, a reaction in which the products and reactants share atleast one common ingredient) (b) Identify the reactants, intermediates, and products for the overall reaction described...
If an endothermic reaction occurs spontaneously, then it can be correctly inferred that A) a catalyst must be present B) the reaction occurs at a slow rate C) ΔGrxn<0 D) ΔHrxn<0 E) delta S rxn < 0
When a graph of energy vs, reaction progress was graphed for the reaction A + B rightarrow C + D, the following data was obtained: a) Draw a rough sketch of what this activation energy diagram looks like. Make sure axes and points are labeled appropriately. B) What is the numerical value of the activation energy obtained from the graph? c) Are reactants or products more stable? d) Is the reaction endothermic or exothermic? Explain. d) On the graph you...
1. Why can a catalyst not reduce the rate of a reaction? (2marks) 2. How could a homogeneous catalyst be heterogenized? (6marks) 3. Give brief details of two examples of important heterogeneously-catalyzed industrial processes. (6marks) 4. Describe all of the steps involved in heterogeneous catalysis, including all of the diffusive steps. Which of the steps controls the overall rate of the reaction?(10marks)
True or false? (a) For an elementary step, the order of the reaction is equal to the molecularity of the reaction. (b) For an elementary step, the order of the reaction is equal to the sum of the stoichiometric coefficients for the reaction. (c) The order of an overall reaction is equal to the molecularity of the reaction. (d) The molecularity of an overall reaction is equal to the sum of the stoichiometric coefficients for the reaction. (e) The order...
Which of the following statements is/are correct? 1. A catalyst speeds up a reaction by changing ∆H, the enthalpy of the reaction 2. Addition of a catalyst to a reaction changes the equilibrium constant 3. A catalyst increases the rates of both the forward and reverse reactions . 3 only B. 2 only C. 2 & 3 only D. none E. 1 & 2 only Which one of the following statements about the overall order of a reaction is correct?...
3. Predict the product of the following two reactions. If no reaction occurs, write no reaction. KMnO d. Was the compound in part c oxidized or reduced? Explain your answer.
Predict the product that results when the aldol addition reaction below occurs. Make sure to clearly indicate any formal charges.
14) In an exothermic reaction, heat can be considered a A) reactant B) product C) rate D) catalyst E) determinant 15) Any reaction that absorbs 150 kcal of energy can be classified as A) endothermic B) exothermic C) activated D) reduction E) oxidation 16) The is the energy difference between reactants and products in a chemical reaction. A) transition energy B) activation energy C) product energy D) overall energy E) heat of reaction 17) For the reaction of carbon with...
2. For 2 -2. predict the product or products for Occurs for the given conditions write You must indicate the correct stereochemistry w points each) ere is no reaction. ons write no reaction and explain why there is no acts for the following reactions. If no reaction were needed in order to get full credit NOTE: any carbon atom be in either the R tom with a start next to it S indicates that this Carbon -absolute configuration. ates that...