A block of wood is floating on water at 0°C with a certain volume V above water level. The temperature of water is slowly raised to 20°C. How does the volume V change with the rise of temperature?
A. remain unchanged
B. decrease continuously
C. decrease till 4°C and then increase
D. increase till 4°C and then decrease.
Answer:A
A block of wood is floating on water at 0°C with a certain volume V above water level. The temperature of water is slowly raised to 20°C. How does the volume V change with the rise of temperature?
A. remain unchanged B. decrease continuously C. decrease till 4°C and then increase D. increase till 4°C and then decrease.