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Photon336

  • one year ago

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  1. Photon336
    • one year ago
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    Which compound is most likely to have the highest heat of vaporization?

  2. Photon336
    • one year ago
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    A. H2O B. NH3 C. HF D. all three are the same

  3. Photon336
    • one year ago
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    @sweetburger this was taken from that test you sent

  4. taramgrant0543664
    • one year ago
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    They are all liquids at room temperature aren't they?

  5. Photon336
    • one year ago
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    doesn't specify however they should be

  6. Photon336
    • one year ago
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    All have the capability to hydrogen bond including an Hydrogen covalently bonded to either an F,O, or N

  7. Photon336
    • one year ago
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    So i don't see how they could have equal heats of vaporization, to me one factor to consider would be molecular mass as well.

  8. taramgrant0543664
    • one year ago
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    If mass was taken into consideration it would be HF as it has the biggest molecular mass

  9. Photon336
    • one year ago
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    Water has a heat of vaporization value of 40.65 kJ/mol. ΔvapH (kJ/mol) Temperature (K) HF 25.2

  10. Photon336
    • one year ago
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    HF has a larger molecular weight than water and the same ability to hydrogen bond so why would these values be different?

  11. Rushwr
    • one year ago
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    Hey can't we take it because all of it has the capability of forming H bonds. H bonds have the highest bond strength Hence the heat needed for liquid to convert to vapor is high. So I think all have the same range

  12. taramgrant0543664
    • one year ago
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    The intermolecular bonds possibly

  13. Photon336
    • one year ago
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    BTW the say that H2O is the answer.

  14. Photon336
    • one year ago
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    @taramgrant0543664 you are correct

  15. Photon336
    • one year ago
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    so, they say that water can form more hydrogen bonds than HF, so it's the extent of H-bonding

  16. taramgrant0543664
    • one year ago
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    Good to know

  17. taramgrant0543664
    • one year ago
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    H2O can form 2 where as the other two can only form 1 each

  18. Photon336
    • one year ago
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    |dw:1438032699574:dw|

  19. Photon336
    • one year ago
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    messy but I think this solves our problem

  20. taramgrant0543664
    • one year ago
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    Yep I believe it does

  21. Rushwr
    • one year ago
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    @Photon336 another one please!

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