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Thermodynamics (A-level only) exam tips
Study Thermodynamics (A-level only) with curriculum-aligned Exam Tips resources, practice links, and exam-focused support.
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exam tips
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Thermodynamics (A-level only)
Exam tips
Draw the Born-Haber cycle clearly
When constructing a Born-Haber cycle, ensure that each step is clearly labeled with the corresponding enthalpy changes.
A clear diagram helps in visualizing the energy changes and ensures that you do not miss any steps in your calculations.
Show all steps in calculations
Always show the governing relationship, substitution, units, and significant figures in your calculations.
This helps to ensure clarity and allows for partial credit even if the final answer is incorrect.
Show all calculations clearly
When calculating lattice enthalpy or percentage differences, show each step of your calculation.
This helps to avoid losing marks for minor arithmetic errors and demonstrates your understanding of the process.
Show all steps in calculations
Always show your working when calculating lattice enthalpy or any thermodynamic values.
This helps to avoid careless mistakes and allows partial credit for correct methods even if the final answer is incorrect.
Use clear definitions
When explaining concepts like entropy, use precise definitions and relate them to examples.
Clear definitions help in demonstrating understanding and can earn you marks in exams.
Show all steps in calculations
When calculating ΔG or ΔS, clearly show each step, including units and significant figures.
This helps to avoid careless mistakes and allows partial credit if the final answer is incorrect.
Show Your Work
Always show the steps in your calculations, including unit conversions and final answers with units.
This helps to earn partial credit even if the final answer is incorrect and demonstrates your understanding of the process.
Show all steps in calculations
When calculating ΔG or related values, clearly show each step of your working.
This helps you avoid mistakes and allows examiners to follow your reasoning, which can earn you partial credit.
Always consider activation energy
When discussing reaction feasibility, always mention activation energy and its role in determining the rate of reaction.
This shows a deeper understanding of the relationship between thermodynamics and kinetics.
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