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GCSE Chemistry · key term
The release of radiation by matter.
Used by OCR
Specification C6.3c · Paper 2 (Foundation), Paper 4 (Higher)
Revise: The Greenhouse EffectThe molecules can also emit infrared radiation again. This re-emission occurs in different directions: some radiation continues towards space, while some travels back towards the Earth’s surface and is absorbed there.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
The release of energy from matter as electromagnetic radiation.
Describe a sequence: incoming short-wave radiation → absorption by the Earth’s surface → emission of long-wave infrared radiation → absorption and re-emission by greenhouse gases.
Describe the process as a sequence: incoming solar radiation → absorption by the surface → infrared emission → absorption and emission by greenhouse gases.
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