Which of the following statements is correct? a. The rate of a reaction is same at any time during the reaction. O b. The rate of a reaction decreases with increase in concentration of reactant(s) O c. The rate of a reaction is independent of temperature change. O d. The rate of a reaction decreases with passage of time as the concentration of reactants decreases.

Which of the following statements is correct? a. The rate of a reaction is same at any time during the reaction. O b. The rate of a reaction decreases with increase in concentration of reactant(s) O c. The rate of a reaction is independent of temperature change. O d. The rate of a reaction decreases with passage of time as the concentration of reactants decreases.

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter8: Reaction Rates And Equilibrium

Section: Chapter Questions

Problem 8.76E

See similar textbooks

Similar questions

use the kineticmolecular theory to explain why an increase in temperature increases reaction rate.
Define these terms: (a) unimolecular reaction (b) bimolecular reaction (c) elementary reaction (d) overall reaction
a What happens to a reaction rate as temperature drops? Give two explanations for the change. State which one is more important and explain why. b How does a catalyst affect reaction rates? c Compare reaction rates when a given reactant concentration is high with the rate when the concentration is low. Explain the difference.
Old-fashioned smelling salts consist of ammonium carbonate, (NH4)2CO3. The reaction for the decomposition of ammonium carbonate (NH4)2CO3(s)2NH3(g)+CO(g)+H2O(g) is endothermic. Would the smell of ammonia increase or decrease as the temperature is increased?
. Account for the increase in reaction rate brought about by a catalyst.
If a textbook defined a catalyst as "a substance that increases the rate of a reaction," would that definition be adequate?
Consider the hypothetical reaction A+B+2C2D+3E In a study of this reaction three experiments were run at the same temperature. The rate is defined as [B]/t. Experiment 1: [A]0 = 2.0 M [B]0 = 1.0 103 M [C]0 = 1.0 M [B] (mol/L) Time(s) 2.7 104 1.0 105 1.6 104 2.0 105 1.1 104 3.0 105 8.5 105 4.0 105 6.9 105 5.0 105 5.8 105 6.0 105 Experiment 2: [A]0 = 1.0 102M [B]0 = 3.0 M [C]0 = 1.0 M [A] (mol/L) Time(s) 8.9 103 1.0 7.1 103 3.0 5.5 103 5.0 3.8 103 8.0 2.9 103 10.0 2.0 103 13.0 Experiment 3: [A]0 = 10.0 M [B]0 = 5.0 M [C]0 = 5.0 101M [C] (mol/L) Time(s) 0.43 1.0 102 0.36 2.0 102 0.29 3.0 102 0.22 4.0 102 0.15 5.0 102 0.08 6.0 102 Write the rate law for this reaction, and calculate the value of the rate constant.
Why awe elementary reactions involving three or more reactants very uncommon?
Consider the following statements: In general, the rate of a chemical reaction increases a bit at first because it takes a while for the reaction to get warmed up. After that, however, the rate of the reaction decreases because its rate is dependent on the concentrations of the reactants, and these are decreasing. Indicate everything that is correct in these statements, and indicate everything that is incorrect. Correct the incorrect statements and explain.
. Consider the figure below in answering the following questions. a. What does a catalyst do to a chemical reaction? b. Which of the pathways in the figure is the catalyzed reaction pathway? How do you know? c. What is represented by the double-headed arrow?