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CAIE IGCSE Physics 2.2.2.3 Specific Heat Capacity As Energy Questions

Practise calculating energy, mass, specific heat capacity and temperature change with ΔE = mcΔT, density and heating data in CAIE IGCSE Physics questions with mark schemes.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • Calculate energy, mass, specific heat capacity or temperature change using ΔE = mcΔT, density and heating data.

CAIE IGCSE Physics 2.2.2.3 Specific Heat Capacity As Energy Questions question 1

[Maximum number: 5]

Fig. 4.1 shows a stainless-steel saucepan being heated on an electric cooker. The saucepan contains water.

Fig. 4.1

Fig. 4.1

Question (a)

(a)

The saucepan contains 250 cm3250 \mathrm{~cm}^{3} of water. The specific heat capacity of water is 4200 J/(kg∘C)4200 \mathrm{~J} /\left(\mathrm{kg}^{\circ} \mathrm{C}\right). The density of water is 1000 kg/m31000 \mathrm{~kg} / \mathrm{m}^{3}.

[ 3 ]

Question (i)

(i)

Calculate the energy required to increase the water temperature from 20∘C20^{\circ} \mathrm{C} to 65∘C65^{\circ} \mathrm{C}.
energy = [3]

[ 3 ]

Question (b)

(b)

The stainless-steel saucepan is replaced with an aluminium saucepan of the same mass. It contains the same volume of water.

The specific heat capacity of stainless steel is 500 J/(kg∘C)500 \mathrm{~J} /\left(\mathrm{kg}^{\circ} \mathrm{C}\right).
The specific heat capacity of aluminium is 890 J/(kg∘C)890 \mathrm{~J} /\left(\mathrm{kg}^{\circ} \mathrm{C}\right).
Explain how using an aluminium saucepan will affect the time taken to heat the water.

[ 2 ]
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