A glass tumbler containing hot water is kept in the freezer compartment of a refrigerator ( temperature < 0). If you could measure the temperature of the content of the tumbler. Which of the following the graphs ( Fig 1.2) would correctly represent the change in it’s temperature as a function of time.
Answer:
The temperature of the water in a tumbler will fall initially till it reaches 0 °C, the freezing point of water. After reaching the freezing point, the temperature will remain constant till all the water has been converted into ice.