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The density of water at 20 is 998 kg/m3 and at 40 is 992 kg/m3. The coefficient of volume expansion of water is
(1) 3 10-4/
For a fixed mass, 1V, so 1 = 2(1 + )
= 1 - 2 2
= 998 - 992992 (40 - 20)
= 619840 3 10-4/
Answer: (1)
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