Question
The top of lake is frozen. Air in contact is at temperature –10°C. What do you expect the temperature of water in contact with lower surface of ice and at the bottom of lake?
Solution
The temperature of water in contact with the lower surface of ice is 0°C and at the bottom of the lake is –4°C. This is the anomalous behaviour exhibited by water. The volume of the water molecules decreases as the temperature rises and expands as the pressure increases.
