Chemical Reaction Rate (Average Rate)
Chemical reaction rate is usually expressed as the decrease in reactant concentration or increase in product concentration per unit time. For the reaction aA +…
Syllabus path: Fundamental Chemical Concepts and Calculations › Chemical Nomenclature and Equation Writing
CSCA Exam Prep
This formula is aligned to the CSCA undergraduate admissions exam syllabus. Continue with the linked tutorial and topic practice.
Practice related questions (7) · Start mock exam · Sign up — AI explanations · Membership plans
CSCA Chemistry Formula Reference
Formula and explanation
Chemical reaction rate is usually expressed as the decrease in reactant concentration or increase in product concentration per unit time. For the reaction aA + bB → cC + dD, the average rate formula: v = - (1)/(a)(Δ[A])/(Δ t) = (1)/(c)(Δ[C])/(Δ t), where Δ[ ] denotes concentration change and Δt denotes time change. The unit of rate is mol/(L·s), etc.
Related tutorial and examples
Chemical Nomenclature and Equation Writing
Core Concepts: Chemical Nomenclature and Equation Writing This section is the "grammar" of chemistry. In the CSCA exam, writing and evaluating Ionic Equations is a mandatory topic, often combined with Redox reactions. Mastering this section is crucial to avoid losing points on "n…
Plan your next CSCA study step
Use this topic in a focused practice set, then connect it to the exam requirements and timed papers.