# Topic Questions: 1 recall and use $W = p\Delta V$ for the work done when the volume of a gas changes at constant pressure and understand the difference between the work done by the gas and the work done on the gas — 9702 P4 The first law of thermodynamics

> 12 9702 P4 The first law of thermodynamics topic questions (28 marks) on 1 recall and use … for the work done when the… — 8 papers, 2025–2026. Open the…

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CIE IAL · Physics · 9702 P4 · The first law of thermodynamics

12 9702 P4 The first law of thermodynamics topic questions are tagged to this syllabus point across 8 papers (2025–2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved.

- 12 topic questions
- 8 papers
- 28 tagged marks
- 52.2% of topic questions
- 52.8% of topic marks
- 2025–2026
- Syllabus 2025–2027
- [All 9702 P4 The first law of thermodynamics topic questions](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/the-first-law-of-thermodynamics/)
- [All paper codes](https://www.examsci.com/topics/)

Core finding

**This The first law of thermodynamics syllabus point appears in 8 9702 P4 papers across 2025–2026, contributing 12 topic questions and 28 marks.** The most recent appearance is 9702/41 May/June 2026. That equals 52.2% of the 23 topic questions and 52.8% of the 53 marks tagged to The first law of thermodynamics. Only parts tagged to this subtopic are counted, so a four-part question can contribute one item and one part's marks. The table lists every matching question, its tagged parts and marks, with a link back to the paper page. Sessions are newest first, so the statement can be traced back through the full paper history.

## Topic questions by session

Newest sessions first. Parts and marks count only the parts tagged to this subtopic; “x of y parts” shows how much of the question is tagged elsewhere. Select the paper cell to open the matching question on the paper page, or use **Go to Practice Hub** to answer that exact question in the Interactive Practice Hub.

| Paper | Question | Type | Parts | Marks | Difficulty | Practice |
| --- | --- | --- | --- | --- | --- | --- |
| [**9702/41** May/June 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-4/2026-may-june-9702-41/#q-3) | **Q3** Thermodynamic Cycles and First Law of Thermodynamics - CIE A-Level Physics 2026 May/Jun Paper 41 Q3 | FRQ | 1 of 4 parts ((c)) | 3 of 10 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=d21ce83a-10e6-4bdf-a0d4-2e58f3af8049&question_id=1b602f0b-c07d-4d4e-93cf-97f1ee3a0696&source_detail=9702%2F41+May%2FJune+2026) |
| [**9702/42** May/June 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-4/2026-may-june-9702-42/#q-3) | **Q3** Thermodynamics of Ideal Gas Compression and Heating - CIE A-Level Physics 2026 Jun Paper 42 Q3 | FRQ | 2 of 7 parts ((b)(i), (b)(ii)) | 3 of 14 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=a6b3f991-4e08-4777-b0c1-71ae2ebf6845&question_id=f072bb31-f437-46e5-bfb1-c3e3f12ae97a&source_detail=9702%2F42+May%2FJune+2026) |
| [**9702/43** May/June 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-4/2026-may-june-9702-43/#q-3) | **Q3** Internal Energy and Thermodynamic Cycles - CIE A Level Physics | FRQ | 1 of 4 parts ((c)) | 3 of 10 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=edd532bd-59ad-4999-a78f-544da637ca77&question_id=3286ce75-e22a-43de-bad3-1979500f3d55&source_detail=9702%2F43+May%2FJune+2026) |
| [**9702/44** May/June 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-4/2026-may-june-9702-44/#q-4) | **Q4** Thermodynamics and Ideal Gas Internal Energy - CIE A-Level Physics 2026 Jun Paper 44 Q4 | FRQ | 1 of 8 parts ((c)(i)) | 2 of 13 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=92110ebb-9742-4a78-840d-cc028724e060&question_id=40fe9003-fba9-497c-9bb2-c759ecec15c4&source_detail=9702%2F44+May%2FJune+2026) |
| [**9702/42** October/November 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-4/2025-october-november-9702-42/#q-4) | **Q4** Thermodynamic Cycle and Internal Energy - CIE Physics 2025 Nov Paper 42 Q4 | FRQ | 3 of 6 parts ((c)(i), (c)(ii), (d)) | 5 of 10 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=be8ce179-8cd6-48f3-9c64-978393c433d0&question_id=391f6fb9-45c2-4359-a23b-34db8c7afa58&source_detail=9702%2F42+October%2FNovember+2025) |
| [**9702/41** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-4/2025-may-june-9702-41/#q-4) | **Q4** Thermodynamics of Ideal Gas Compression and Cooling - CIE Physics 2025 Jun Paper 41 Q4 | FRQ | 1 of 3 parts ((b)) | 4 of 8 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=9e2dee21-081d-42d0-8bb9-5baea4db8b62&question_id=de2b83b9-a6e8-4627-93ba-ba575d517457&source_detail=9702%2F41+May%2FJune+2025) |
| [**9702/42** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-4/2025-may-june-9702-42/#q-3) | **Q3** First Law of Thermodynamics and Specific Heat of Aluminium - CIE A-Level Physics 2025 May/June Paper 42 Q3 | FRQ | 2 of 7 parts ((b)(iii), (b)(iv)) | 4 of 13 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=befea6ad-6b61-4f2f-bc8d-ff860277e016&question_id=9aed3603-5d20-4773-96c1-676311862b52&source_detail=9702%2F42+May%2FJune+2025) |
| [**9702/43** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-4/2025-may-june-9702-43/#q-4) | **Q4** Internal Energy and First Law of Thermodynamics - CIE Physics 2025 Jun Paper 43 Q4 | FRQ | 1 of 3 parts ((b)) | 4 of 8 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=9f1b5e88-c15d-4a93-b176-b396f91108d9&question_id=ac2ca717-19b7-4839-9b9c-67e5fb6a02a8&source_detail=9702%2F43+May%2FJune+2025) |

## Related topic questions in The first law of thermodynamics

- [2 recall and use the first law of thermodynamics $\Delta U = q + W$ expressed in terms of the increase in internal energy, the heating of the system (energy transferred to the system by heating) and the work done on the system](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/the-first-law-of-thermodynamics/2-recall-and-use-the-first-law-of-thermodynamics-delta-u-q-w-expressed-in-terms-of/) — 17 question items · 10 papers — 44 marks · 2025–2026

## Topic question rules and edge cases

**How many topic questions cover this syllabus point?**

8 question stems cover this subtopic across 8 papers, but only 12 tagged parts and 28 marks belong to it. Other parts of the same questions are assessed under different statements and are excluded from this page.

**Which papers include this subtopic?**

The table lists every matching session from 2025–2026. Each row links to the question anchor on the paper page, where the full paper context and practice entry point are available.

**Why can one question appear under several subtopics?**

The parts of one question can assess different syllabus statements. Each part is counted under its own subtopics, so the same question stem can appear on several subtopic pages while each page lists only the parts and marks tagged to that statement.

**Can I practise these questions with AI marking?**

Yes. Open a paper from the table and use the Interactive Practice Hub entry point. The page itself is static HTML so search engines and retrieval agents can read the full question list without executing JavaScript.

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