# Determining the heat capacity of honey at home

For this, your final home experiment which will contribute to your final report you are to design and carry out an experiment at home to determine the heat capacity of honey at home.

## Determining the heat capacity of honey at home

The average heat capacity of a substance can be determined at home by determining the rate of heat transfer from a hot plate at a fixed setting to a quantity of substance with known heat capacity e.g. water which has a heat capacity of 4190 J/kg/K, where the same (cooled) container is used to make the measurements for both substances.

For this, your final home experiment which will contribute to your final report you are to design and carry out an experiment at home to determine the heat capacity of honey at home.

### Your equipment list should include:

300-500 g of honey

500 g of water

Small cooking pot (1 litre)

Stopwatch App

Candy Thermometer (check its temperature range first)

House stove (if you do not have one, visit a friend)

Digital Scales

Candy thermometers are to click onto the side of a saucepan as shown. They should not touch the bottom of the pan. Your liquid should stay just on the bottom mark (usually 30oC) so you can see the scale (weigh your liquid). The lowest value on a candy is 30oC so you will not be able to measure below this temperature. Does this matter? that do you need to measure for this experiment to work out heat transfer and heat capacity?

#### Useful formula: Rate of heat transfer, H in J/s, is given by:

dT
H mc
dt

Where m is the mass of substance in kg, c the heat capacity in J/kg/C, T the temperature in degrees celcius, and t, time in seconds.
Compare your specific heat to the accepted values for honey: 2268 J/kg/K – 2520 J/kg/K. How specific heat is normally measured?
Safety First
Honey is capable of boiling over, do not go above temperatures of 100oC.
Honey also has a much lower heat capacity than water therefore will heat more quickly so pay attention. Please don’t touch the pan if it is heat ed up. MAKE SURE ADDING GRAPH AND THE TABLE ON THE RESULT PART