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Which of the following liquids has greater vapour pressure at 20°C? A) Water B) Ethanol C) Acetone |
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Answer» Water is much smaller than either of the previous substances and exhibits weaker dispersion FORCES, but its EXTENSIVE hydrogen bonding PROVIDES stronger intermolecular attractions, fewer molecules escaping the liquid, and a lower vapor pressure than for either diethyl ETHER or ethanol. |
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