6.1

Rate of reaction

10 flashcards to master Rate of reaction

Smart Spaced Repetition

Rate each card Hard, Okay, or Easy after flipping. Your progress is saved and cards are scheduled for optimal review intervals.

Definition Flip

Answer Flip

Definition Flip

Define a 'chemical change'. Give an example.

Answer Flip

A chemical change involves the formation of new substances with different chemical properties.

Example: Burning wood is a chemical change because it produces ash, carbon dioxide, and water.
Key Concept Flip

How does a catalyst increase the rate of a chemical reaction?

Answer Flip

A catalyst increases the rate of reaction by providing an alternate reaction pathway with a lower activation energy. The catalyst is chemically unchanged at the end of the reaction.

Example: Cobalt used in ethanoic acid production.
Key Concept Flip

Answer Flip

Key Concept Flip

What happens to the equilibrium position at temperatures above 300°C in a reversible reaction?

Answer Flip

Above 300°C, the equilibrium will shift to favor the endothermic reaction. If the forward reaction is exothermic, the equilibrium shifts to the left (reactants), reducing product yield.

Example: in the Haber process (N₂ + 3H₂ ⇌ 2NH₃), increasing the temperature favors the reverse reaction, decreasing ammonia production.
Key Concept Flip

Answer Flip

Key Concept Flip

What is the general formula for a carboxylic acid?

Answer Flip

The general formula for a carboxylic acid is CₙH₂ₙ₊₁COOH. Carboxylic acids contain a carboxyl functional group (-COOH).

Example: if n=1, the carboxylic acid is methanoic acid (HCOOH).
Key Concept Flip

Give the names of the carboxylic acid and alcohol required to produce methyl butanoate

Answer Flip

The carboxylic acid is butanoic acid and the alcohol is methanol. Butanoic acid + Methanol -> Methyl Butanoate + Water.

Key Concept Flip

A compound contains 48.65% Carbon, 8.11% Hydrogen and 43.24% Oxygen by mass. Calculate the empirical formula.

Answer Flip

C: 48.65/12 = 4.05; H: 8.11/1 = 8.11; O: 43.24/16 = 2.70. Divide by smallest (2.70): C: 1.5; H: 3; O: 1. Multiply by 2 to get whole numbers: C₃H₆O₂

Definition Flip

List two characteristics of compounds in the same homologous series.

Answer Flip

Compounds in the same homologous series: 1) Have similar chemical properties. 2) Contain the same functional group. 3) Consecutive members differ by CH₂.

Review the material

Read revision notes with definitions, equations, and exam tips.

Read Notes

Test yourself

Practice with MCQ questions to check your understanding.

Take Quiz
5.2 Bond energies 6.2 Reversible reactions and equilibrium

Key Questions: Rate of reaction

Define a 'chemical change'. Give an example.

A chemical change involves the formation of new substances with different chemical properties.

Example: Burning wood is a chemical change because it produces ash, carbon dioxide, and water.
List two characteristics of compounds in the same homologous series.

Compounds in the same homologous series: 1) Have similar chemical properties. 2) Contain the same functional group. 3) Consecutive members differ by CH₂.

About Rate of reaction (6.1)

These 10 flashcards cover everything you need to know about Rate of reaction for your Cambridge IGCSE Chemistry (0620) exam. Each card is designed based on the official syllabus requirements.

What You'll Learn

How to Study Effectively

Use the Study Mode button above to test yourself one card at a time. Try to answer each question before flipping the card. Review cards you find difficult more frequently.

Continue Learning

After mastering Rate of reaction, explore these related topics: