Equilibrium — Revision Notes
BITSAT · Chemistry
Quick revision notes for Equilibrium — key concepts, formulas, and definitions for BITSAT Chemistry preparation.
Revision Notes — Equilibrium
Key concepts, formulas, and definitions from Equilibrium for BITSAT Chemistry preparation.
Key Topics to Revise
6.1 Equilibrium in Physical Processes
- Physical equilibrium exists between different phases of the same substance
- Examples: solid ⇌ liquid, liquid ⇌ gas, solid ⇌ gas
- Equilibrium can only be established in closed systems
6.2-6.3 Chemical Equilibrium and Law of Mass Action
- Chemical equilibrium involves reversible chemical reactions
- At equilibrium: rate of forward reaction = rate of backward reaction
- Law of Mass Action: For aA + bB ⇌ cC + dD
6.4-6.5 Homogeneous and Heterogeneous Equilibria
- Homogeneous equilibria: all species in same phase
- Heterogeneous equilibria: species in different phases
- For gas phase reactions: Kp = (pC)ᶜ(pD)ᵈ/(pA)ᵃ(pB)ᵇ
6.6-6.7 Applications and Thermodynamic Relations
- Reaction quotient Qc predicts reaction direction
- If Qc < Kc: reaction proceeds forward
- If Qc > Kc: reaction proceeds backward
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What topics are covered in Equilibrium for BITSAT?
Equilibrium is an important chapter in BITSAT 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 BITSAT?
Equilibrium is a frequently tested chapter in BITSAT Chemistry. Questions from this chapter appear regularly in previous year papers. There are 57 practice questions available for this chapter.
How to prepare Equilibrium for BITSAT?
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.