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First Law and Enthalpy, Hess's Law, Entropy and Spontaneity and the board questions built on them — roughly 7 marks of the paper.
What this chapter covers
- 1First Law and Enthalpy
- 2Hess's Law
- 3Entropy and Spontaneity
- 4Gibbs Free Energy
These lessons are being recorded. The written notes for this chapter are free to download now.
Learning resources
Seedha Notes
Chapter notes withimportant points,examples & format
View Notes for Thermodynamics, ChemistryPractice Questions
Important questions,board questions,numericals
Practice Now for Thermodynamics, ChemistryPrevious yearquestions withfull solutions
View PYQs for Thermodynamics, ChemistrySample Paper
Board patternsample paper withmarking scheme
Open Paper for Thermodynamics, Chemistry
In the notes
Topics covered
- 01First Law and Enthalpy17:52
- 02Hess's Law25:38
- 03Entropy and Spontaneity10:53
- 04Gibbs Free Energy20:37
After this chapter you can
- Explain first law and enthalpy without reading from the book
- Present hess's law in the format the marking scheme rewards
- Attempt every previous year question set on this chapter
- Marks
- 7
- PYQs
- 24
- Video
- 1h 15m
Then do the work
- One-shot revision, 19 minutes
- Formula sheet for this chapter
- Printable summary, 2 pages
Prepare
| Year | Asked as | Marks |
|---|---|---|
| 2025 | MCQ set | 6 |
| 2024 | Case based | 4 |
| 2023 | Short answer | 6 |
| 2022 | Long answer | 4 |
| 2021 | MCQ set | 4 |
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