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.
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.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:Scenario
You have a new job working as designer for a new theme park. You have been
tasked with designing two new attractions - one must be a go kart racetrack, and the
other must be a food stand that serves fresh donuts, candy floss and sweets.
Question 1 - Food stand (AC2.1, 2.2, 2.3, 4.1 & 4.2)
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.
Oil type
Mass (kg)
2.3kg
2.1kg
3.2 kg
Corn oil
Vegetable oil
Lard
Temperature at
the start (°C)
40
40
40
Temperature at
the end (°C)
182
211
123

Transcribed Image Text: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 60kJkg-¹
The specific heat capacity of lard when solid is 1.3kJkg-¹ °C-1
250
200
150
100
50
0
Lard Heating Graph
10
20
30
Time (minutes)
#
40
50
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