IB Chemistry HL 1.1.1 Energy transfer Question Bank
Practise IB Chemistry HL 1.1.1 by applying energy transfer to exam-style questions.
- Syllabus
- First assessment 2025
- Course
- Chemistry HL
- Level
- HL
Exam points
- identify the relevant chemical structure, process or evidence
- apply the correct chemical model or equation
- evaluate the result using chemical reasoning and data
1.1.1—Energy transfer question 1
[Maximum number: 1]
The increased concentration of carbon dioxide in the atmosphere is thought to result from the increased combustion of fossil fuels such as petroleum.
Outline why the energy available from an engine will be less than these theoretical values.
energy is lost «to the surroundings» as heat/sound/friction
OR
energy is lost to the surroundings «as heat/sound/friction»
OR
incomplete combustion
Marking guidance:
Do not accept simply "energy is lost".
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