In each pair of compounds, pick the one with the higher vapor pressure at a given temperature. Explain your reasoning. a. CH4 or CH3C

Question

In each pair of compounds, pick the one with the higher vapor pressure at a given temperature. Explain your reasoning.
a. CH4 or CH3CI
b. CH3CH2CH2OH or CH3OH
c. CH3OH or H2CO

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Tryphena 3 years 2021-08-06T16:40:51+00:00 1 Answers 137 views 0

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  1. nguyetanh
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    2021-08-06T16:42:44+00:00
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    Answer:

    The answer is:

    PART \ A: CH_4\\\\PART \ B: CH_30H\\\\PART \ C: H_2CO

    Explanation:

    Parts A:

    The vapor pressure is higher in CH_4 because it is non-polar, while CH_3Cl is polar. CH_4 has a lower molar weight as well.

    Part B:

    Although hydrogen bonding is found in both commodities, the vapor pressure is higher because of the smaller molar mass of CH_30H.

    Part C:

    H_2CO does not show hydrogen due to the increased vapor pressure

    CH_3OH bonding.

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