K.C.S.E Physics Q & A - MODEL 2004PP1QN21&22
​A certain powder of mass. 0.10kg was heated in a container by an electric heater rated 50 w for sometime. The graph below shows the variation of the temperature of the powder with time. Use this information and the graph to answer question
21 and 22.
i) Determine the quantity of heat by the heater from the time the power starts to melt to the time it has all melted.
ii) Determine the specific latent heat of fusion of powder assuming the container absorbs negligible amount of heat
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M.A NyamotiMy passion is to see students pass using right methods and locally available resources. My emphasis is STEM courses
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