Question

What is the temperature range for anomalous expansion of water?

• A. -4 ${}^{\circ }$C to 0 ${}^{\circ }$C
• B. 4 ${}^{\circ }$C to 0 ${}^{\circ }$C
• C. 8 ${}^{\circ }$C to 0 ${}^{\circ }$C
• D. 4 ${}^{\circ }$C to -10 ${}^{\circ }$C

Answer 1

The correct option is B 4 ${}^{\circ }$C to 0 ${}^{\circ }$C

The anomalous expansion of water is a unique property of water. Water expands instead of contracting when the temperature goes from 4 ${}^{\circ }$C to 0 ${}^{\circ }$C, and it becomes less dense. This is because of formation of cage like structure which has hollow pores in between.