Question 1
The diagram shows a temperature–time graph for a 200 g sample of substance Y heated at a constant rate. What process occurs between points P and Q?
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Physics · Unit 1 · Heating processes · Kinetic particle model and specific heat capacity
Solve problems involving specific heat capacity, specific latent heat and thermal equilibrium.
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Question 2
A 250 g aluminium block at 85°C is placed in thermal contact with a 400 g copper block at 20°C. The system is thermally isolated. After reaching thermal equilibrium, the final temperature is measured as 38°C. What does this result indicate about the experiment?
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Question 3
The graph shows the temperature of a 0.50 kg sample of an unknown solid substance as heat is added at a constant rate of 150 W. What physical property can be determined from the gradient of section PQ?
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