18.1. Rates of Reactions http://www.ck12.org
b. A solid piece of zinc in 3 M HCl
c. Zinc powder in 1 M HCl
d. Zinc powder in 3 M HCl- Use the potential energy diagram below to answer the following questions.
a. What is the potential energy of the reactants?
b. What is the potential energy of the products?
c. What is the heat of reaction (∆H)?
d. What is the potential energy of the activated complex?
e. What is the activation energy for the reaction?
f. Is the reaction endothermic or exothermic?
g. Which of the values in a-e above would be changed by the use of a catalyst in the reaction?Further Reading / Supplemental Links
- PotentialEnergyDiagrams, http://www.kentchemistry.com/links/Kinetics?PEDiagrams.htm
- FactorsAffectingReactionRates, http://www.kentchemistry.com/links/Kinetics/FactorsAffecting.htm
Points to Consider
Rate laws provide a quantitative relationship between the rate of a reaction and the concentrations of its reactants.
- How can experiments be designed in order to determine the rate law for a reaction?
- What is a specific rate constant?