Reversibility & Equilibrium (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards

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Reversible Reactions
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Non-reversible reactions definition

Reactions that proceed in one direction only, from reactants to products

Arrow notation for non-reversible reactions

Single arrow (→)

Why does CO2CO_2 escaping prevent backward reaction?

Gas escapes and can't react to reform reactants

Reversible reactions definition

Reactions that proceed in both forward and backward directions

What can products do in reversible reactions?

React with each other to regenerate reactants

Arrow notation for reversible reactions

Double arrow (⇌)

Example of a reversible reaction

H2+I2⇌2HIH_2 + I_2 ⇌ 2HI

Forward reaction of H2+I2H_2 + I_2

H2+I2→2HIH_2 + I_2 → 2HI

Backward reaction of 2HI2HI

2HI→H2+I22HI → H_2 + I_2

What does ⇌ symbol indicate?

Reaction is reversible

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Rate of Reaction

Reversibility & Equilibrium

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Rate of Reaction

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Rate of Reaction

Reversibility & Equilibrium

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Rate of Reaction

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