Chapter 5 of 22
Revision Notes
Thermodynamics — Revision Notes
NEET-UG · Chemistry
Quick revision notes for Thermodynamics — key concepts, formulas, and definitions for NEET-UG Chemistry preparation.
Interactive on Super Tutor
Studying Thermodynamics? Get the full chapter — free.
Practice questions, revision notes, formula sheet and AI doubt-solver — built for NEET-UG Chemistry.
Super Tutor
Super Tutor has 17+ illustrations like this for Thermodynamics alone — flashcards, concept maps, and step-by-step visuals.
See them allRevision Notes — Thermodynamics
Key concepts, formulas, and definitions from Thermodynamics for NEET-UG Chemistry preparation.
Key Topics to Revise
1
Basic Concepts and System Types
- System: Part of universe under study, separated by definite boundaries
- Surroundings: Rest of the universe excluding the system
- Isolated System: No exchange of matter or energy (example: sealed thermos flask)
2
Laws of Thermodynamics
- Zeroth Law: If A and B are in thermal equilibrium with C, then A and B are in thermal equilibrium
- First Law: Energy cannot be created or destroyed, only converted (ΔU = q + w)
- Second Law: Entropy of universe always increases in spontaneous processes
3
Enthalpy and Heat Capacity
- Enthalpy (H) = U + PV, more useful than internal energy for constant pressure processes
- ΔH = ΔU + ΔnRT for reactions involving gases
- Heat capacity: amount of heat required to raise temperature by 1°C
4
Thermodynamic Processes and Work Calculations
- Isothermal: constant temperature (ΔU = 0 for ideal gas)
- Adiabatic: no heat exchange (q = 0)
- Isobaric: constant pressure (w = -PΔV)
Get complete revision notes with diagrams and examples — continue in Super Tutor
Key Concepts
A system is the partEnergy can neither be created norEnthalpy (H) represents total heat contentThe enthalpy change of a reactionEntropy (S) measures disorder in
Frequently Asked Questions
What topics are covered in Thermodynamics for NEET-UG?
Thermodynamics is an important chapter in NEET-UG Chemistry. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Basic Concepts and System Types, Laws of Thermodynamics, Enthalpy and Heat Capacity, Thermodynamic Processes and Work Calculations.
How important is Thermodynamics for NEET-UG?
Thermodynamics is a frequently tested chapter in NEET-UG Chemistry. Questions from this chapter appear regularly in previous year papers. There are 66 practice questions available for this chapter.
How to prepare Thermodynamics for NEET-UG?
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.
More resources for Thermodynamics
For NEET-UG aspirants
Get the full Thermodynamics chapter — for free.
Practice questions, revision notes, formula sheet and AI doubt-solver for NEET-UG Chemistry.