Question detail

What is a catalyst and how does it affect the rate of a chemical reaction?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

Question

Type

exam_style

Style

Topic

Rate of reaction

Question

What is a catalyst and how does it affect the rate of a chemical reaction?

Answer

A catalyst is a substance that increases the rate of a chemical reaction without beingconsumed in the process. It achieves this by providingan alternative reaction pathway with a lower activation energy.

Explanation

This question tests the understandingof the role of catalysts in chemical reactions, specifically their ability to affect reaction rates without beingused up. It assesses recall of definitions and the concept of activation energy.

Common mistake

Misunderstanding Catalyst Function

Students often think that catalysts are consumed in the reaction.

Remember that catalysts speed up reactions without being used up, allowing them to be reused in multiple reactions.

Related flashcards

Flashcard 1 of 5

Press Space to flip, arrows to move

Related practice questions

Question 1 of 5

Choose an answer, get feedback, then move sideways through the set.

0 of 5 attempted
exam Q1: rate without being used up. | Rate of reaction | AQA… | ExamCompanion