Photo AI
The neutralisation reaction between ethanoic acid and sodium carbonate is an endothermic reaction - Edexcel - GCSE Chemistry - Question 1 - 2017 - Paper 1
Question 1
The neutralisation reaction between ethanoic acid and sodium carbonate is an endothermic reaction. Describe what is meant by the term endothermic reaction. (b) The... show full transcript
Worked Solution & Example Answer:The neutralisation reaction between ethanoic acid and sodium carbonate is an endothermic reaction - Edexcel - GCSE Chemistry - Question 1 - 2017 - Paper 1
Step 1
Describe what is meant by the term endothermic reaction.
Answer
An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, particularly in the form of heat. As a result, the temperature of the surroundings decreases. Essentially, the reactants take in thermal energy to break bonds, which allows the reaction to proceed.
Step 2
Step 3
Explain, in terms of particles, why increasing the concentration of the acid increases the rate of this reaction.
Answer
Increasing the concentration of the acid results in more particles of acid in the same volume. This leads to a higher frequency of collisions between the acid particles and the magnesium ribbon, resulting in more successful collisions per second that can lead to a reaction.