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2 December, 23:06

Which compound has the lowest vapor pressure at 50°C?

(1) ethanoic acid (3) propanone

(2) ethanol (4) water

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  1. 2 December, 23:11
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    Answer : Option A) Ethanoic Acid

    Explanation : Ethanoic acid has the lowest vapor pressure i. e 0.08 atm at the temperature of 50°C compared to the other given options.

    The vapour pressure of propanone at 50°C is 0.84 atm

    Ethanol has vapour pressure as 0.30 atm at 50°C

    water has vapour pressure of 0.12 atm at 50°C.
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