OCR GCSE Chemistry A · J248
Specification C6.2n · Paper 2 (Foundation), Paper 4 (Higher)
- Revise: Hydrocarbons Dependency
Using resources in a way that considers present benefits and the resources available for the future.
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GCSE Chemistry · key term
The ability to meet present demand without causing an unacceptable long-term environmental impact.
Used by OCR
Specification C6.2n · Paper 2 (Foundation), Paper 4 (Higher)
Using resources in a way that considers present benefits and the resources available for the future.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
The ability of a process to meet current demand without causing long-term environmental harm.
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A route with high atom economy tends to use raw materials more efficiently, but sustainability requires a wider judgement. Consider whether the raw materials are renewable, whether other uses compete for them, how much energy the route needs, and the nature and quantity of its waste and by-products. A by-product that another process can use is different from one that needs disposal.