Catalysts (VCE SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the key characteristic of catalysts in chemical reactions?
What is the key characteristic of catalysts in chemical reactions?
Increase rate without being consumed
How do catalysts increase the rate of chemical reactions?
How do catalysts increase the rate of chemical reactions?
Provide alternative pathway, lower
What effect do catalysts have on the enthalpy change () of a reaction?
What effect do catalysts have on the enthalpy change () of a reaction?
No change to value
What is a heterogeneous catalyst?
What is a heterogeneous catalyst?
Different state to reactants & products
Which is an example of homogeneous catalysis?
Which is an example of homogeneous catalysis?
Cl atoms (gas) catalyzing (gas)
Why are heterogeneous catalysts preferred in industry?
Why are heterogeneous catalysts preferred in industry?
Easier separation and reuse
Why is surface area crucial for heterogeneous catalysts?
Why is surface area crucial for heterogeneous catalysts?
More adsorption sites, faster reaction
Which metals are used in catalytic converters?
Which metals are used in catalytic converters?
Platinum, palladium, rhodium
What catalyst is used in the Haber process to produce ammonia?
What catalyst is used in the Haber process to produce ammonia?
Powdered iron
How do catalysts increase the proportion of successful collisions?
How do catalysts increase the proportion of successful collisions?
More particles exceed lower