As a physicist, you put heat into a 500.0-g solid sample at the rate of 10.0 kJ/min, while recording its temperature as a function of time. You plot your data and obtain the graph shown in Fig. (a) What is the latent heat of fusion for this solid? (b) What are the specific heats of the liquid and solid states of the material? Fig:
Solution 38E Step 1 of 6: Given Power, P = 10 kJ/min 3 Using 1 kJ = 10 J and 1 min= 60 sec 3 P = 10 kJ/min( 10 J)( 1 min) 1 kJ 60 sec P = 166.66 J/sec Mass, m = 500 g = 0.5 kg Here in the given graph, The different phases from solid to liquid can be represented as shown below, As solid when heated or supplied energy , it starts heating at the start(solid), than it starts melting by keeping temperature constant;solid melting and finally liquid state.