C3- energy calculations

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PRACTICE OF CALCULATIONS ON SEPERATE PAPER

comparong energy released by fuels

  • when fuels of food react ith oxygen the reaction is exothermic
  • we can use a calorimeter to measure amount of energy released when substances burn
  • simple calorimenters do not give accurate results because lots of the energy is used to heat the surroundings

energy transfers in solutions

  • when a reaction takes place energy is transferred to or from reaction
  • we do…

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