Revision – Thermodynamics & Equilibrium
Chemistry · Grade 11 · Week 45 · 25 questions
This Grade 11 chemistry chapter on Revision introduces Thermodynamics & Equilibrium. Clear understanding here pays off in competitive exams (JEE/NEET) where speed matters.
What you'll practise
- Identify Thermodynamics & Equilibrium
- Work through NCERT intext examples and exercise questions for revision
- Apply revision concepts to NCERT exercise and exemplar problems
All 25 questions in this Revision – Thermodynamics & Equilibrium quiz
Grade 11 Chemistry — Revision – Thermodynamics & Equilibrium: 25 practice questions with instant scoring and explanations.
- First law of thermodynamics:
- State function example:
- Enthalpy definition:
- Hess's law:
- Exothermic reaction has:
- Standard enthalpy of formation of element:
- Second law expression:
- Gibbs free energy:
- Spontaneity criterion:
- At equilibrium:
- ΔG° = −RT ln K (equilibrium).
- For spontaneous at all T:
- For non-spontaneous at all T:
- Kp and Kc related by:
- If Q < K, reaction:
- Le Chatelier: increasing pressure favours:
- Adding catalyst:
- pH = 3 means [H⁺] =
- Ka × Kb =
- Buffer at pH = pKa when:
- Ksp for AgCl:
- Ksp for CaF₂:
- Common ion effect:
- Buffer equation (Henderson-Hasselbalch):
- Le Chatelier for exothermic reaction: increasing T
Question 1 of 250 correct so far