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Heat energy changes in chemical reactions

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Question 44

A student investigates the temperature change when citric acid reacts with sodium hydrogencarbonate in an insulated cup. The apparatus used is shown in Figure 1.

Figure 1: Diagram of a calorimeter assembly. A thermometer labeled W is inserted through a plastic lid labeled X. The lid is placed on top of a polystyrene cup labeled Y. The polystyrene cup is sitting inside a beaker labeled Z for stability.

Give the letter of the piece of apparatus (W, X, Y or Z) in Figure 1 that is used to measure the temperature.

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Heat energy changes in chemical reactions Questions

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

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