Learning objective

Specify the typical conditions for converting sulfur dioxide to sulfur trioxide in the Contact process, which are 450 °C, 200 kPa (2 atm), and the use of vanadium(V) oxide as a catalyst.

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Cambridge IGCSE ChemistryChemical reactionsSupplement content

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Quick explanation

Specify the typical conditions for converting sulfur dioxide to sulfur trioxide in the Contact process, which are 450 °C, 200 kPa (2 atm), and the use of vanadium(V) oxide as a catalyst

This point belongs to Reversible reactions and equilibrium, especially Reversible reactions and equilibrium outcomes.
You need to be able to specify the typical conditions for converting sulfur dioxide to sulfur trioxide in the Contact process, which are 450 °C, 200 kPa (2 atm), and the use of vanadium(V) oxide as a catalyst.
The key ideas to know are State.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

State

Why it matters

This objective helps connect Reversible reactions and equilibrium outcomes to exam-style questions, flashcards, and revision notes for Reversible reactions and equilibrium.

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