Physics 9702 · AS & A Level · Specific heat capacity and specific latent heat

Specific heat capacity and specific latent heat — practice question

(a)[2]

State what the term specific latent heat refers to.

(b(i)-1)[1]

Energy is supplied continuously by the heater. State where, in this experiment, external work takes place.

(b(i)-2)[2]

Energy is supplied continuously by the heater. State where, in this experiment, internal energy rises. Explain your answer.

(b(ii))[3]

Use the information in Fig. 2.2 to determine the specific latent heat of vaporisation of water.

(c(ii))[3]

Use the information shown in Fig. 2.2 to determine the specific latent heat of vaporisation of water.

Worked solution & mark scheme

This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: Thermal energy per unit mass causing a change of state

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