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2.2 Thermal properties and temperature

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Question 48

An iron block has a mass of 400 g. The specific heat capacity of iron is 450 J/(kg ∘C)450\text{ J}/(\text{kg}\ \text{}^{\circ}\text{C})450 J/(kg ∘C). How much energy is needed to increase the temperature of the block from 15 ∘C15\text{ }^{\circ}\text{C}15 ∘C to 95 ∘C95\text{ }^{\circ}\text{C}95 ∘C?

A

14.4 J14.4\text{ J}14.4 J

B

1440 J1440\text{ J}1440 J

C

14 400 J14\,400\text{ J}14400 J

D

14 400 000 J14\,400\,000\text{ J}14400000 J

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2.2 Thermal properties and temperature Questions

  1. IGCSE
  2. /Physics
  3. /2.2 Thermal properties and temperature

528 exam-style questions on CIE IGCSE Physics 2.2 Thermal properties and temperature, covering 2.2.1 Thermal expansion of solids, liquids and gases, 2.2.2a Internal energy and temperature, 2.2.2b Specific heat capacity, 2.2.3a Melting, boiling, condensation and solidification, 2.2.3b Evaporation, and 2.2.3c Cooling by evaporation. Each one has a worked solution and a mark scheme showing where the marks go.

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