You need to choose the correct oil for the donut fryer (power of the fryer is 2000W). The oil has plenty of time to heat up before opening, and you need it to stay as hot as possible to reduce the energy consumption when keeping the oil hot all day. You design an experiment to calculate the specific heat capacities of the oil. a) You decide to run your experiment for 5 minutes. Your results are in the table below. Use them to calculate the specific heat capacity of each oil, then choose an oil for your fryer based on these results. Temperature at the start (°C) Temperature at the end (°C) 182 Oil type Mass (kg) 40 2.3kg 2.1kg 3.2 kg Corn oil Vegetable oil Lard 40 211 40 123 b) You realise that lard is solid when you take it out of the fridge. You decide to run an experiment starting from solid state. The graph of your results is below. Describe what is happening at each section of the graph. Then use this to calculate the total energy needed to heat 3.2kg of lard at 3°C out of the fridge to frying temperature of 200°C. The latent heat of fusion of lard is 60kJkg1 The specific heat capacity of lard when solid is 1.3kJkg 1°C-1 Lard Heating Graph 250 200 150 100 50 10 20 30 40 50 Time (minutes) Temperature (degrees C)

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