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Physics · Unit 1 · Heating processes · Kinetic particle model and specific heat capacity

Explain, in terms of the internal energy of a system and the kinetic particle model of matter, why the temperature of a system remains the same during the process of state change.

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Question 1

The graph shows the temperature of a substance as thermal energy is added at a constant rate. What best explains why the temperature remains constant between points B and C?

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Question 2

During the melting of ice at 0 °C, thermal energy is continuously added but the temperature remains constant. What best explains this observation in terms of the kinetic particle model?

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Question 3

What happens to the thermal energy supplied to ice at 0 °C during melting?

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