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116 116 Prelab Activity 2 Feb 8

116 116 Prelab Activity 2 Feb 8 - Name Lab Day/Time Lab...

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Name: _____________________ Lab Day/Time: _____________________ Lab Group Number: ____________________ CHM 116 Prelab Activity for Week 4 Investigation 36: “What Factors Affect Chemical Equilibrium?” 2 Points 1. Read Sections 15.1 and 15.7 in your textbook. In addition, you may want to review Chapter 5 with regards to ΔH sign (+ / −) as it relates to endothermic / exothermic reactions. Review Sample Exercise 15.13a, b, and e and do Exercise 15.51 a, b, and f. 2. Which of the following statements regarding equilibrium is false? a. At equilibrium, the concentrations of the products and reactants do not change over time b. At equilibrium, the rate of the forward reaction and the rate of the reverse reaction are equal. c. At equilibrium, the concentration of reactant(s) may exceed the concentration of product(s). d. Equilibrium cannot be reached starting with only products. e. Equilibrium can be reached starting with only reactants. 3. In your own words, state Le Châtelier’s Principle. 4. Consider the following reaction at equilibrium CO (g) + 2 H 2 (g) CH 3 OH (g) ΔH = − 90.7 kJ Predict the shift in the reaction ( left , right , or
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