question_answer

Explain why a beaker filled with water at \[\mathbf{4}{}^\circ \mathbf{C}\] overflows if the temperature is decreased or increased?

Answer:

                It is because of the anomalous expansion of water. Water has a maximum density at \[\text{4}{}^\circ \text{C}\]. Therefore, water expands whether it is heated above \[\text{4}{}^\circ \text{C}\] or cooled below \[\text{4}{}^\circ \text{C}\].