A quantity of water at 0°C is heated to about 30°C. At each degree rise in temperature, its density will
- rise steadily
- fall steadily
- fall then rise
-
rise then fall
The correct answer is: D
Explanation
Water has a density of about 0.9998 g/cm³ at 0°C. As water is heated from 0°C to 4°C, it actually increases in density until it reaches its maximum density at approximately 4°C. Once the temperature exceeds 4°C, the density starts to decrease as the water continues to heat up towards 30°C.
Therefore, The density will rise and fall.
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