Required Practical 2

• improve method - improved insulation 


  Insulate the beaker or use a polystyrene cup or a lid

  To reduce heat loss
• improved method - improved temperature recording

  Record the temperature for a suitable time before adding the metal

  To establish an accurate initial temperature
• improved method - improved analysis of results

  Extrapolate the cooling back to the point of addition

  To establish temperature change (e.g. at the 4th minute)