Need Chemistry help with boiling points

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1) Considering their intermolecular forces, place the following gases in order of boiling points. Starting with the lowest boiling point first, giving reasons for your answer

CH4, He, HF, Ne

2) A compound exhibits a vapor pressure of 760 mmHg at 21oC and 960 mmHg at 100oC.

What is Hvap of this substance? 

Apr 19th, 2015

1. Gases with  increasing boiling point: He, Ne, CH4 and HF

2. Hvap = 960 mmHg

Explanation:  Hvap is the vapor pressure at 100 C

Apr 19th, 2015

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Apr 19th, 2015
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Apr 19th, 2015
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