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Heat energy changes in chemical reactions

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Question 81

A student wants to investigate the heat energy change during the neutralization reaction between dilute sulfuric acid and sodium hydroxide solution in an insulated calorimeter.

Calorimeter setup

The steps needed to carry out this investigation are U, V, W, X and Y. They are not in the correct order:

  • U: Measure the temperature of the acid in the polystyrene cup to find the starting temperature.
  • V: Measure 30 cm3 of dilute sulfuric acid using a measuring cylinder.
  • W: Add the sodium hydroxide solution to the cup, place the lid on, and stir.
  • X: Pour the measured sulfuric acid into the polystyrene cup.
  • Y: Record the maximum temperature reached by the mixture.

Write the letters of the steps in the correct order, from first to last.

[2]

Heat energy changes in chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /Heat energy changes in chemical reactions

Practise Edexcel GCSE Chemistry Heat energy changes in chemical reactions with exam-style questions for Foundation and Higher tier. 130 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank