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Pollution And Fuels

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卡片总数: 10内容版本: v4公开卡包更新时间: 8/1/2026

卡片预览 (10 张)

#1
正面 (问题)

How is carbon monoxide produced and why is it bad

背面 (解答)

-produced by incomplete combustion of hydrocarbon fuels -odourless and lethal as binds to haemoglobin more strongly than oxygen meaning less oxygen can be carried in the blood and delivered to cells

#2
正面 (问题)

Why are carbon particles bad

背面 (解答)

-soot can have health effects if breathed in (respiratory diseases) and global dimming

#3
正面 (问题)

What are unburnt hydrocarbons

背面 (解答)

Not all fuels burn, unburnt hydrocarbons can be carcinogenic

#4
正面 (问题)

Why are sulfur impurities bad

背面 (解答)

Can burn to form sulfur dioxide (SO2) which dissolves in air to form sulfuric acid which causes acid rain which can poison catalytic converters

#5
正面 (问题)

What is used to remove sulfur dioxide

背面 (解答)

Calcium oxide used in flu gas desulfurization forming calcium sulfate

#6
正面 (问题)

How are nitrogen oxides formed

背面 (解答)

When nitrogen and oxygen in the air react in the engines of cars due to high temperature to form NOx’s

#7
正面 (问题)

Why are nitrogen oxides bad

背面 (解答)

Can dissolve in air to form acid rain, can form photochemical smog and ozone pollution

#8
正面 (问题)

What are catalytic converters

背面 (解答)

The high surface area of the catalyst results from the honeycomb structure and contains rhodium, palladium and platinum catalysts and converts unburnt hydrocarbons and nitrogen oxides into carbon dioxide and nitrogen which are less harmful

#9
正面 (问题)

What are two alternative biofuels

背面 (解答)

-bioethanol (from sugars and carbohydrates made by fermentation which need to be distilled) -biodiesel (from soya or (new) plant waste which doesn’t need distillation)

#10
正面 (问题)

Carbon neutral

背面 (解答)

Process that takes in as much carbon dioxide as it releases