Energy Changes In Systems

• the specific heat capacity of a substance is the amount of energy required to to raise the temperature of one kilogram of the substance by one degree celsius
• practical - specific heat capacity:

  • place the immersion heater into the central hole at the top of the block
  • place the thermometer into the smaller hole and put a couple drops of oil into the hole to make sure the thermometer is surrounded by hot material
  • Fully insulate the block by wrapping it loosely with cotton wool
  • record the temperature of the block
  • connect the heater to the power supply and turn it off after ten minutes
  • after then minutes the temperature will still rise . Record the highest temperature that it reaches then calculate the temperature rise during the experiment