IB Chemistry SL 1.3.3 Fossil Fuels Questions
Use real exam questions to calculate fuel energy, compare CO₂ released by fuels and explain carbon dioxide and methane greenhouse effects.
- Syllabus
- First assessment 2025
- Course
- Chemistry SL
- Level
- SL
Exam points
- Calculate or compare the specific energy or energy output of a stated fuel using combustion enthalpy, amount, mass or volume data and consistent units.
- Compare fuels by carbon dioxide released for equal fuel masses or equal energy output, balancing combustion equations and converting between fuel amount and CO₂ produced.
- Explain the greenhouse effect and compare carbon dioxide with methane or other stated gases using atmospheric abundance, infrared absorption, source or environmental consequence evidence.
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IB Chemistry SL 1.3.3 Fossil Fuels Questions question 1
The chart shows how sunlight changes as it passes through the earth's atmosphere. The light grey area shows the intensity at different wavelengths of sunlight entering the atmosphere. The dark grey area shows how much reaches sea level. Various molecules which interact with sunlight and the wavelengths they absorb are indicated on the following chart.
Spectrum of solar radiation (Earth)
Identify a major greenhouse gas not given in the diagram.
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