Describe the experimental setup (including the electrical circuit) of the apparatus you would use to measure the specific heat capacity of a liquid using an electrical method.
List the quantities you would need to measure, or previously know, in order to calculate the specific heat capacity of the liquid.
A sample of ethanol has a specific heat capacity of 2400 J/(kg⋅∘C)2400\text{ J}/(\text{kg}\cdot^\circ\text{C})2400 J/(kg⋅∘C) and a boiling point of 78.0∘C78.0^\circ\text{C}78.0∘C.
Calculate the energy required to raise the temperature of 1.25 kg1.25\text{ kg}1.25 kg of this ethanol from 18.0∘C18.0^\circ\text{C}18.0∘C up to its boiling point. State the equation that you use.
The energy to raise the temperature in (b)(i) is supplied at a rate of 400 W400\text{ W}400 W. Calculate the time taken to raise the ethanol to its boiling point.
119 exam-style questions on CIE IGCSE Physics 2.2.2a Internal energy and temperature. Each one has a worked solution and a mark scheme showing where the marks go.