An engineer testing an electric vehicle's thermal management system monitors the temperature of an ethylene glycol coolant as it passes through a heat exchanger.
The table below shows the data collected during the test run.
| Parameter | Value |
|---|---|
| Mass of ethylene glycol | 1.85 kg |
| Initial temperature | −15.4 ∘C-15.4\text{ }^{\circ}\text{C}−15.4 ∘C |
| Final temperature | 38.2 ∘C38.2\text{ }^{\circ}\text{C}38.2 ∘C |
| Change in thermal energy of coolant | 238,680 J238,680\text{ J}238,680 J |
Using the data in the table, calculate the temperature increase of the ethylene glycol coolant.
36 exam-style questions on Edexcel GCSE Physics 14.2 Specific heat capacity and latent heat. Each one has a worked solution and a mark scheme showing where the marks go.