A student heats a beaker containing ice and water. He measures the temperature of the beaker as a function of time and draws the following graphs in which temperature is taken as Y-axis and time is taken as X- axis. i. What does the curve A-B represent? ii. What happens after 25 minutes? iii. What does the curve C-D represents? iv. At wht temperature and time ice melts?
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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 the latent heat of fusion. On further heating, the temperature of the water would increase.
So, option (d) correctly represents the result
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