Multiple choice

At what temperature is the mass of pure water of volume 1 cubic centimetre is 1 g?

  1. 0°C

  2. 1°C

  3. 4°C

  4. 10°C
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C Correct answer
Explanation

Pure water reaches its maximum density at approximately 4°C. At this temperature, 1 gram of water occupies exactly 1 cubic centimeter of volume. This is why water is densest at 4°C - below this temperature, the molecules start forming an open crystal structure (approaching ice).

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