Question 25
Thermal ExpansionA quantity of water at 0 °C is heated to about 30 °C. At each degree rise in temperature, its density will
- A.rise steadily
- B.rise then fall
- C.fall steadily
- D.fall then rise.
Show the answer and explanation
Answer: B (rise then fall)
Explanation
Water is densest at 4 °C, so its density rises from 0 °C to 4 °C and then falls as it is heated further.