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: The images shown here depict the first-order reaction A B A at various times during the reaction process. The black circles represent reactant A and the red circles represent product A. What is

Problem
The images shown here depict the first-order reaction A B A at various times during the reaction process. The black circles represent reactant A and the red circles represent product A.

The figure shows 5 states of a reaction during time. At the beginning of the reaction, there are 10 black balls in the system. After 30 seconds there are 8 black and 2 red balls, after 60 seconds - 6 black and 4 red balls, after 90 seconds - 5 black and 5 red balls, and after 120 seconds - 4 black and 6 red balls.

What is the half-life of the reaction?