. A student heats a beaker containing ice and water. He measures the temperature of the content of the beaker as a function of time


A student heats a beaker containing ice and water.  He measures  the temperature of the content of the beaker as a function of time. Which of the following (Fig. 1.1) would correctly represent the result? Justify your choice

He measures  the temperature of the content of the beaker as a function of time

Best Answer

Answer. D

Since ice and water  are in equilibrium, the temperature would  be zero. When we heat the mixture, energy supplied is utilized in melting the ice and the temperature does not change till all the ice melts because of latent heat of fusion. On further heating, the temperature of the water  would increase. Therefore the correct option is (d)

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