Choosing a Reaction Pathway (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards
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Reaction pathway definition
Reaction pathway definition
Series of steps to produce a desired chemical product
Percentage yield meaning
Percentage yield meaning
How much reactant successfully turns into desired product
Atom economy meaning
Atom economy meaning
How much reactant becomes product vs waste
Rate of reaction (pathway factor)
Rate of reaction (pathway factor)
How fast the reaction happens
Equilibrium position (pathway factor)
Equilibrium position (pathway factor)
How much reactant converts to product in reversible reactions
Why by-products matter in pathway choice
Why by-products matter in pathway choice
If useful, can be sold/used, improving overall efficiency
Fermentation equation for ethanol
Fermentation equation for ethanol
Hydration of ethene equation
Hydration of ethene equation
Fermentation of sugars: yield %
Fermentation of sugars: yield %
15%
Hydration of ethene: yield %
Hydration of ethene: yield %
95%
Fermentation: atom economy %
Fermentation: atom economy %
51.1%
Hydration of ethene: atom economy %
Hydration of ethene: atom economy %
100%
Reaction rates: fermentation vs hydration
Reaction rates: fermentation vs hydration
Fermentation low, hydration high
% ethene converted at equilibrium (one pass)
% ethene converted at equilibrium (one pass)
5%
Fermentation by-product & its use
Fermentation by-product & its use
, sold to fizzy drink companies