WAEC Physics 2011 Theory — Question 22
Question 22 of 39 from the West African Examinations Council (WAEC) Physics 2011 Theory paper, with the correct answer and a full explanation.
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12(d) State two precautions necessary in an experiment to determine the specific latent heat of vaporization of water.
Model answer
Precautions: (i) the calorimeter should be well lagged, (ii) the calorimeter should be shielded from the heat source, (iii) the mixture should be gently and continually stirred, (iv) dry steam should be used (any two).
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