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2.2.2a Internal energy and temperature

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Question 7

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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2.2.2a Internal energy and temperature Questions

  1. IGCSE
  2. /Physics
  3. /2.2.2a Internal energy and temperature

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.

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