The Density of Water Has Its Maximum Value at 4 ^$\circ$

question 13

Multiple Choice

The density of water has its maximum value at 4 ^$\circ$ C because

• A) the thermal motion of the molecules overcomes the hydrogen bonds and allows the molecules to approach each other more closely.
• B) the thermal motion of the molecules is much greater than the energy of the hydrogen bonds and allows the molecules a great deal of freedom of motion.
• C) covalent bonds begin breaking at this temperature.
• D) the molecules are trapped in place by very strong hydrogen bonds.
• E) the maximum number of hydrogen bonds exists between the molecules at this temperature.

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