OCR Salters Developing Fuels

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Why does methanol have a lower enthalpy change of combustion than methane?
A hydroxyl group is present which means the molecule is already partially oxidised. Energy from a fuel is released when bonding with oxygen during combustion and here, fewer bonds can be made.
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What is another name for entropy?
The amount of disorder
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What does NOT feature in a diesel engine?
A hydrocarbon and flash point combined sensor
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Card 2

Front

What is another name for entropy?

Back

The amount of disorder

Card 3

Front

What does NOT feature in a diesel engine?

Back

Preview of the front of card 3

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