Before a compact travel kettle can be used, its heating element must raise the temperature of the water inside.
The heating element has a power rating of 750 W.
The specific heat capacity of water is 4200 J/kg ∘C4200 \text{ J/kg }^\circ\text{C}4200 J/kg ∘C.
Show that it takes the heating element about 190 s to raise the temperature of 0.40 kg of water from 15∘C15^\circ\text{C}15∘C to 100∘C100^\circ\text{C}100∘C.
Use equations from the formula sheet.
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.