A student does an experiment using 0.4 kg0.4\text{ kg}0.4 kg of vegetable oil.
Here is some information from the experiment:
- The aim is to find the energy needed to raise the temperature of the vegetable oil by 15 ∘C15\text{ }^\circ\text{C}15 ∘C.
- An electrical immersion heater is used to heat the oil. The temperature of the oil increases by 15 ∘C15\text{ }^\circ\text{C}15 ∘C.
- The specific heat capacity of vegetable oil is 2100 J/kg ∘C2100\text{ J/kg }^\circ\text{C}2100 J/kg ∘C.
Describe how the student should carry out the experiment, including the equipment used. In your answer, calculate the change in thermal energy for the vegetable oil. You may include a diagram in your answer.
