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Entropy — Chemistry IAL Past Papers
54 papers, 2014–2025 · Unit 4, Unit 5
Every Chemistry IAL past paper in the collection that assesses entropy.
By unit: all units (54) · Unit 4 (31) · Unit 5 (23)
Unit 4 : on 31 of 31 papers, 3–18 marks a paper (10 on average)Unit 5 : on 23 of 31 papers, 1–4 marks a paper (2 on average)
Read question by question: blind checks found 112 of 120 question parts tagged with the right topic (95% confidence interval 87.4–96.6%). “needs (a)” names an earlier part the listed parts build on, so a question can be worked through whole.
How topics are found and checked
Papers
Unit 4 · June 2025 · Q3 · 1 mark, Q13 (c) · 1 mark, Q19 (a(ii), a(iii)) · 5 marks · needs (a(i)) — question paper and mark scheme
Unit 5 · June 2025 · Q15 (d(ii)) · 2 marks — question paper and mark scheme
Unit 4 · January 2025 · Q9 · 1 mark, Q14 · 1 mark, Q19 (a, c) · 4 marks — question paper and mark scheme
Unit 5 · January 2025 · Q8 · 1 mark, Q20 (c(ii)) · 2 marks — question paper and mark scheme
Unit 4 · October 2024 · Q11 · 1 mark, Q20 (a(i), a(ii)) · 5 marks — question paper and mark scheme
Unit 5 · October 2024 · Q18 (d(i)) · 1 mark — question paper and mark scheme
Unit 4 · June 2024 · Q5 · 1 mark, Q15 (a(ii), a(iii), a(iv), c(i)) · 8 marks — question paper and mark scheme
Unit 5 · June 2024 · Q6 · 1 mark, Q16 (b(ii)) · 2 marks — question paper and mark scheme
Unit 4 · January 2024 · Q4 · 1 mark, Q5 · 1 mark, Q6 · 1 mark, Q19 (a(iii)) · 3 marks — question paper and mark scheme
Unit 5 · January 2024 · Q1 (c) · 1 mark — question paper and mark scheme
Unit 4 · October 2023 · Q16 (a(i), a(iii), b(i), b(ii)) · 11 marks · needs (a(ii)) — question paper and mark scheme
Unit 5 · October 2023 · Q7 · 1 mark, Q19 (e) · 2 marks — question paper and mark scheme
Unit 4 · June 2023 · Q20 (a(i), a(ii), a(iii), c) · 7 marks · needs (b) — question paper and mark scheme
Unit 5 · June 2023 · Q3 · 1 mark — question paper and mark scheme
Unit 4 · January 2023 · Q4 · 1 mark, Q5 · 1 mark, Q6 · 1 mark, Q20 (a(i), a(iii), a(iv), a(v)) · 7 marks · needs (a(ii)) — question paper and mark scheme
Unit 4 · October 2022 · Q5 · 1 mark, Q17 (a(iii)) · 2 marks, Q18 (c(i), c(ii), c(iii), c(iv), c(v), c(vi), d) · 15 marks — question paper and mark scheme
Unit 5 · October 2022 · Q23 (e(ii)) · 2 marks — question paper and mark scheme
Unit 4 · June 2022 · Q14 · 1 mark, Q21 (a(ii), a(iii), b(i), b(ii)) · 11 marks · needs (a(i)) — question paper and mark scheme
Unit 5 · June 2022 · Q15 (d) · 2 marks — question paper and mark scheme
Unit 4 · January 2022 · Q22 (a, b, c(i), c(ii), c(iii), d(i), d(ii), d(iii)) · 13 marks — question paper and mark scheme
Unit 4 · October 2021 · Q3 · 1 mark, Q4 · 1 mark, Q5 · 1 mark — question paper and mark scheme
Unit 5 · October 2021 · Q7 · 1 mark — question paper and mark scheme
Unit 4 · June 2021 · Q1 · 1 mark, Q2 · 1 mark, Q15 (a, b) · 5 marks, Q20 (b(iv), c) · 5 marks · needs (b(i), b(ii), b(iii)) — question paper and mark scheme
Unit 4 · January 2021 · Q1 · 1 mark, Q2 · 1 mark, Q5 · 1 mark, Q6 · 1 mark, Q20 (a) · 5 marks — question paper and mark scheme
Unit 4 · October 2020 · Q6 · 1 mark, Q19 (a(i), a(ii), a(iii), a(iv), a(v)) · 13 marks — question paper and mark scheme
Unit 4 · October 2020 · Q3 · 1 mark, Q16 (a(i), a(ii), b(i), b(ii)) · 8 marks — question paper and mark scheme
Unit 5 · October 2020 · Q15 · 1 mark, Q17 (e(iii)) · 2 marks — question paper and mark scheme
Unit 4 · January 2020 · Q7 · 1 mark, Q19 (a(i), a(ii), a(iii)) · 10 marks — question paper and mark scheme
Unit 4 · October 2019 · Q3 · 1 mark, Q4 · 1 mark, Q5 · 1 mark, Q16 (a(i), a(ii), a(iii), a(iv), b(i), b(ii)) · 13 marks — question paper and mark scheme
Unit 5 · October 2019 · Q15 · 1 mark — question paper and mark scheme
Unit 4 · June 2019 · Q5 · 1 mark, Q12 · 1 mark, Q24 (a(ii), a(iii), a(iv)) · 5 marks · needs (a(i)), Q25 (a(iii)) · 2 marks — question paper and mark scheme
Unit 5 · June 2019 · Q4 · 1 mark, Q18 (c(ii)) · 2 marks — question paper and mark scheme
Unit 4 · January 2019 · Q4 · 1 mark, Q21 (a(ii), a(iii), a(iv), a(v), b(ii)) · 11 marks · needs (a(i)), Q24 (a(ii)) · 2 marks · needs (a(i)) — question paper and mark scheme
Unit 5 · January 2019 · Q6 · 1 mark, Q20 (b(viii)) · 3 marks — question paper and mark scheme
Unit 4 · October 2018 · Q4 · 1 mark, Q5 · 1 mark, Q6 · 1 mark, Q7 · 1 mark, Q21 (a, b, c, d, e) · 11 marks — question paper and mark scheme
Unit 5 · October 2018 · Q1 (b) · 1 mark — question paper and mark scheme
Unit 4 · June 2018 · Q14 (a(i), a(ii), b(i), b(iii), b(iv), c(i), c(ii), d, e) · 18 marks · needs (b(ii)) — question paper and mark scheme
Unit 5 · June 2018 · Q4 · 1 mark — question paper and mark scheme
Unit 4 · January 2018 · Q4 · 1 mark, Q5 · 1 mark, Q6 · 1 mark — question paper and mark scheme
Unit 4 · October 2017 · Q4 · 1 mark, Q5 · 1 mark, Q6 · 1 mark, Q10 · 1 mark, Q18 (b(iii)) · 2 marks — question paper and mark scheme
Unit 5 · October 2017 · Q6 · 1 mark — question paper and mark scheme
Unit 4 · June 2017 · Q16 (a(i), a(ii), b(i), b(ii), c(i), c(ii)) · 10 marks — question paper and mark scheme
Unit 4 · January 2017 · Q4 · 1 mark, Q5 · 1 mark, Q24 (b(i), b(iii), b(iv), c(i), c(ii), c(iii)) · 13 marks · needs (b(ii)) — question paper and mark scheme
Unit 5 · June 2016 · Q6 · 1 mark — question paper and mark scheme
Unit 4 · January 2016 · Q6 · 1 mark, Q7 · 1 mark, Q18 (c) · 2 marks, Q20 (a(i), a(ii), a(iii), b) · 7 marks — question paper and mark scheme
Unit 5 · January 2016 · Q5 · 1 mark, Q6 · 1 mark — question paper and mark scheme
Unit 4 · June 2015 · Q17 (a(i), a(iii), a(iv), a(v)) · 11 marks · needs (a(ii)) — question paper and mark scheme
Unit 5 · June 2015 · Q9 · 1 mark — question paper and mark scheme
Unit 4 · January 2015 · Q3 · 1 mark, Q4 · 1 mark, Q5 · 1 mark, Q6 · 1 mark, Q8 · 1 mark, Q24 (a(ii)) · 3 marks — question paper and mark scheme
Unit 5 · January 2015 · Q10 · 1 mark — question paper and mark scheme
Unit 4 · June 2014 · Q5 · 1 mark, Q19 (b(ii), b(iii), b(iv)) · 6 marks, Q21 (c(i), c(ii)) · 4 marks — question paper and mark scheme
Unit 5 · June 2014 · Q24 (d(ii)) · 1 mark — question paper and mark scheme
Unit 4 · January 2014 · Q19 (a(i), a(ii), a(iii), a(iv), a(v)) · 12 marks — question paper and mark scheme
Unit 5 · January 2014 · Q4 · 1 mark — question paper and mark scheme
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