Ch.13 - Chemical KineticsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Two reactions have identical values for Ea. Does this ensure that they will have the same rate constant if run at the same temperature?

Solution: Two reactions have identical values for Ea. Does this ensure that they will have the same rate constant if run at the same temperature?

Problem

Two reactions have identical values for Ea. Does this ensure that they will have the same rate constant if run at the same temperature?

Solution

We have to determine if two reactions with the same activation energy would have the same rate constants if they are run at the same temperature.

We will use the two-point form of the Arrhenius equation to solve this problem.

lnk2k1 = -EaR(1T2 - 1T1)

Where,

k1 = rate constant at T1

k2 = rate constant at T2

Ea = activation energy

R = universal gas constant

T2 = higher temperature

T1 = lower temperature


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