Melting ice and specific heat capacity

• What is the first step in the melting investigation practical?

  Fill the beaker with boiling water
• What should be done after filling the boiling tube with crushed ice?

  Record its temperature
• How often should the temperature be recorded during the melting investigation?

  Every 30 seconds
• What safety precaution involves hair and clothing when using a bunsen burner?

  Hair and loose clothing should be tied back
• What is the purpose of using a safety flame when not heating water?

  To prevent accidental ignition
• What should be placed underneath the bunsen burner?

  A heatproof mat
• What type of graph should be drawn with the melting data?

  A graph of temperature against time
• What is expected to happen to the temperature graph while the ice is melting?


  The temperature remains roughly constant
• Why does the temperature remain constant during melting?

  Energy is used to break bonds in the substance
• What is the first step in the specific heat capacity practical?

  Measure the mass of the empty beaker
• What should be done after measuring the mass of the empty beaker?

  Fill it with water and remeasure
• What should be done to ensure the beaker is insulated?

  Insulate the beaker
• What equipment is inserted into the water during the specific heat capacity practical?

  An immersion heater and thermometer
• How long should the water be heated in the specific heat capacity practical?

  For an hour
• What should be recorded after heating the water?

  The final temperature
• What is the purpose of a joulemeter in the heating process?

  To measure the amount of energy transferred
• What can be done to aid the heating process of water?

  Continually stir the water
• How is 'Specific Heat Capacity' defined?

  Energy needed to raise 1 kg by 1℃
• What are the units for Specific Heat Capacity?

  J/°C/kg
• What is the equation for calculating energy change when a substance is heated?

  ΔE = m c Δ��
• What are the appropriate units for the variables in the energy change equation?

  Energy (J), Mass (kg), Temperature (°C)