A student heats 500 g of water. The temperature of the water increases by 12 ∘C12\ {}^\circ\text{C}12 ∘C.
The specific heat capacity of water is 4200 J/kg ∘C4200\ \text{J/kg}\ {}^\circ\text{C}4200 J/kg ∘C.
Use the equation: change in thermal energy=mass×specific heat capacity×change in temperature\text{change in thermal energy} = \text{mass} \times \text{specific heat capacity} \times \text{change in temperature}change in thermal energy=mass×specific heat capacity×change in temperature
What is the change in thermal energy of the water?
25 200 J25\,200\ \text{J}25200 J
50 400 J50\,400\ \text{J}50400 J
2 100 000 J2\,100\,000\ \text{J}2100000 J
25 200 000 J25\,200\,000\ \text{J}25200000 J
44 exam-style questions on OCR GCSE Physics 1.2 Changes of state, covering 1.2.1 Conservation of mass during changes of state, 1.2.2 Physical and chemical changes, 1.2.3 Heating, temperature and changes of state, 1.2.4 Specific heat capacity and specific latent heat, 1.2.5 Internal energy and temperature change, and 1.2.6 Energy transfer during a change of state. Each one has a worked solution and a mark scheme showing where the marks go.