Enthalpy & Calorimetry Investigations for H2 Chemistry Paper 4
28 Oct 2025, 00:00 Z
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Q: What does Enthalpy & Calorimetry Investigations for H2 Chemistry Paper 4 cover?
A: A step-by-step thermochemistry routine for Paper 4-planning insulation, logging temperature data with probes, linearising cooling curves, and writing ACE commentary that meets SEAB’s 2026 assessment expectations.
TL;DR
Paper 4 lasts 2 h 30 min, carries 50 marks, and contributes 20 % of the H2 Chemistry grade (Planning 4 %; MMO/PDO/ACE 16 % combined) under SEAB’s 2026 syllabus/specimen set (9476). Thermochemistry investigations (solution, neutralisation, combustion, thermometric titration) are explicitly listed in the Paper 4 practical scope.
Calibrate probes, insulate reaction vessels, capture temperature-time data for extrapolated ΔT, and automate calculations so ACE discussion focuses on heat losses, assumptions, and realistic refinements.
Status: SEAB H2 Chemistry (9476) syllabus and 9476/04 specimen paper last checked 2026-01-13. Paper 4 is 2 h 30 min, 50 marks, weighted at 20 % with Planning at 4 % and MMO/PDO/ACE at 16 % combined.[1][2]
Code note: 2026 resources use 9476; older notes may still reference 9729.
Quick win box
- Focus now: Calorimetry practical focus.
- High-yield priority: Heat-loss control + clean uncertainty reporting.
- 60-minute drill: 20 min setup protocol · 20 min sample calculation · 20 min ACE refinement.
1 | Why thermochemistry stays in rotation
- SEAB’s H2 Chemistry (9476) 2026 syllabus[1] sets Paper 4 as a 2 h 30 min, 50-mark practical (20 % of the grade) assessing Planning (P, 4 %) and MMO/PDO/ACE (16 % combined), and includes thermochemistry/thermometric titration within the Paper 4 practical scope.
