Chapter 11 of 19
Formula Sheet
Equilibrium — Formula Sheet
OJEE · Chemistry
Free Equilibrium formula sheet for OJEE Chemistry 2026 — all important formulas, equations, and constants for quick reference.
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Important formulas and equations from Equilibrium for OJEE Chemistry.
Formulas — Equilibrium
Basic Equilibrium Concepts
Kc = [C]^c[D]^d / [A]^a[B]^bKp = Kc(RT)^ΔngQc = [C]^c[D]^d / [A]^a[B]^bΔG° = -RT ln KcAcids, Bases and pH
pH = -log[H+]Kw = [H+][OH-] = 1.0 × 10⁻¹⁴ at 25°CpKw = pH + pOH = 14 at 25°CKa = [H+][A-]/[HA]α = √(Ka/C)Buffer Solutions
pH = pKa + log([A-]/[HA])pOH = pKb + log([BH+]/[B])Buffer capacity = moles of acid or base added / change in pHSalt Hydrolysis
Kh = Kw/Ka (for salt of weak acid + strong base)Kh = Kw/Kb (for salt of strong acid + weak base)h = √(Kh/C)pH = 1/2[pKw + pKa + log C]Get the complete formula sheet with derivations — continue in Super Tutor
Frequently Asked Questions
What topics are covered in Equilibrium for OJEE?
Equilibrium is an important chapter in OJEE Chemistry. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: 6.1 Equilibrium in Physical Processes, 6.2-6.3 Chemical Equilibrium and Law of Mass Action, 6.4-6.5 Homogeneous and Heterogeneous Equilibria, 6.6-6.7 Applications and Thermodynamic Relations.
How important is Equilibrium for OJEE?
Equilibrium is a frequently tested chapter in OJEE Chemistry. Questions from this chapter appear regularly in previous year papers. There are 350 practice questions available for this chapter.
How to prepare Equilibrium for OJEE?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.
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