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Heat energy changes in chemical reactions

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Question 67

A self-cooling beverage can contains a compartment of water and a separate compartment of chemical salts at the base, as shown in the diagram.

Cross-section diagram of the base of a self-cooling can. There is an outer chamber containing solid ammonium nitrate and an inner breakable capsule containing water. A button on the bottom is labeled 'push to break capsule'.

When a button at the bottom of the can is pressed, the inner capsule breaks, allowing the chemical salts to dissolve in the water.

Explain why the beverage can becomes cold.

[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