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Heat energy changes in chemical reactions

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Question 43

Figure 1 shows the apparatus used to compare the energy transferred by burning different liquid fuels.

A spirit burner containing liquid fuel is positioned directly beneath a metal calorimeter can filled with water. A thermometer is suspended in the water. A draught shield surrounds the entire setup to minimise heat loss to the surroundings.

For each fuel, 1.0 g of the fuel is burned and the temperature rise of the water is recorded.

State one variable, apart from the mass of fuel burned, that must be kept constant in this investigation to ensure a fair comparison.

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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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