When solid ammonium chloride is shaken with water, a colourless solution forms and the temperature changes from 20°C to 16°C - Edexcel - GCSE Chemistry - Question 6 - 2016 - Paper 1
Question 6
When solid ammonium chloride is shaken with water, a colourless solution forms and the temperature changes from 20°C to 16°C.
Give the name of the type of heat chan... show full transcript
Worked Solution & Example Answer:When solid ammonium chloride is shaken with water, a colourless solution forms and the temperature changes from 20°C to 16°C - Edexcel - GCSE Chemistry - Question 6 - 2016 - Paper 1
Step 1
Give the name of the type of heat change occurring.
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Answer
The type of heat change occurring is termed an 'endothermic reaction' as the total temperature is decreasing, indicating heat is absorbed from the surroundings.
Step 2
State a suitable container for the iron(III) sulfate solution in this experiment.
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Answer
A suitable container for the iron(III) sulfate solution is a glass beaker, which is resistant to chemical reactions and allows for easy observation of changes.
Step 3
State what the student should do to the mixtures during the experiment.
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Answer
During the experiment, the student should gently stir the mixtures to ensure uniform distribution of the metal and maintain consistency in temperature measurement.
