1. There are two factors required for a chemical reaction to take place. a) What are they? b) Which one is easier to ach

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1 There Are Two Factors Required For A Chemical Reaction To Take Place A What Are They B Which One Is Easier To Ach 1 (63.81 KiB) Viewed 36 times

1. There are two factors required for a chemical reaction to take place. a) What are they? b) Which one is easier to achieve via control of environmental factors, and how might you attempt this control? 2. Can Ea​ of an exothermic reaction a) Be larger than ΔE ? b) Can it be smaller? c) Why or why not? d) Are your answers to the above questions true for an endothermic reaction as well? 3. Is the transition state a stable state? 4. Does the transition state have to be the result of a collision? 5. If a molecule is inherently unstable, does it need any activation energy to react? 6. An element effect is a condition where a reaction shows systematic differences when different elements used as reactants undergo the same reaction, but with noticeable differences. Does free radical halogenation exhibit an element effect? 7. You are aware that the rate law has the form of Rate =k[A]I′a . In which of the parts of the rate law (k,A,m,B, or n), if any, would the Arrhenius equation be of importance? 8. Using the Arrhenius equation, explain why reactions often occur faster a) when the Ea​ is lowered b) when the temperature is raised 9. What is used to lower the Ea ​ of a reaction? 10. Answer the questions for the following reaction diagram. a) Describe what is happening in this reaction as one goes from initial reactants to final products. b) In which stages (A, B, C, D, or E) of the reaction are stable molecules depicted? In which stages are unstable molecules depicted? c) There's more than one Ea​ shown for the reaction below. If you had to design a catalyst for this reaction. which of the E's would you want it to lower? 11. Take a look at any reaction diagram. What would the various activation energies tell you about a) how many steps the reaction mechanism has? b) The rate of the reaction? c) Why would you still be unsure about part (b)? (Hint: There's more than just one factor that governs the rate of reaction.)