Waec 2022 Physics Question 11
Practice essay / theory question 11 from the 2022 Waec Physics examination. This question covers General .
11(a) State two factors that affect the rate of evaporation of a liquid. (b) Explain the term latent heat. (c) Explain each of the following phenomena: (i) One a dry day, water in a clay pot is cooler than water in a rubber container. (ii) Cooking of food is faster in pressure cooker than in an ordinary pot. (d) A 40 V electric heater is used to supply a current of \( 12 A \) for 1400 seconds to a body of mass \( 1.5 k g \) at its melting point. The body melts and its temperature rises by 60 °C in an extra 1.2 minutes. Calculate the: (i) latent heat of fusion of the body; (ii) specific heat capacity of the body. (e) State two differences between evaporation and boiling.
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This is Waec 2022 Physics Question 11. It is one of the essay questions from the 2022 Waec Physics examination.
The question covers General .
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