2.2 specific heat capacity + REQUIRED PRACTICAL

Question 1

what does the temperature rise of a substance when it is heated depend on

Answer 1

• amount of energy supplied to it
• mass of substance
• what the substance is

Question 2

specific heat capacity def

Answer 2

the energy needed to raise the temperature of 1 kg of a substance by 1 degree

Question 3

specific heat capacity unit

Answer 3

J/kg degrees celsius

Question 4

Measuring specific heat capacity of aluminium required practical

Answer 4

1. Check the mass of the aluminium block
2. Wrap the insulation securely around the block and place it on an insulating mat
3. With the power supply switched off, set up apparatus as shown in the diagram
4. Check that the joulemeter is correctly connected to the heater and power supply
5. Place the thermometer on the aluminium block and measure the temperature of the block and record it
6. Switch the joulemeter on and record the starting reading
7. Switch the power supply on
8. When the reading on the thermometer reaches 15 degrees higher than the starting temperature, switch off the power supply
9. Record joulemeter and thermometer reading
10. Measure and record the highest reading of the thermometer after the heater was switched off

Question 5

Measuring specific heat capacity of water required practical

Answer 5

1. Into a beaker, measure an amount of water than has the same mass as the aluminium block used
2. Insulate the beaker by wrapping insulation around it