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0213

  • 2 years ago

A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 313.0 Torr at 45.0 °C. Calculate the value of ΔH°vap for this liquid. Calculate the normal boiling point of this liquid. How would I do this? Please help

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  1. 0213
    • 2 years ago
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    @Rohitkhanna

  2. petiteme
    • 2 years ago
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    Should you use Clausius-Clapeyron equation?

  3. 0213
    • 2 years ago
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    do I just solve for T2 and use the same values?

  4. petiteme
    • 2 years ago
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    Well, let the normal boiling point be T2

  5. 0213
    • 2 years ago
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    wouldn't that just give me the T that is given in the question ?

  6. petiteme
    • 2 years ago
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    Nope. Sorry :/ I suck at explaining chemistry

  7. 0213
    • 2 years ago
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    i just get a very small number

  8. petiteme
    • 2 years ago
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    What did you get for ΔH°vap?

  9. RaphaelFilgueiras
    • 2 years ago
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    im not good at chemistry but let's try

  10. 0213
    • 2 years ago
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    43.55 kj/mol

  11. petiteme
    • 2 years ago
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    I used \[\log\frac{ P2 }{ P1 }=\frac{ ΔH }{2.303R }*(\frac{ 1? }{ T1 }-\frac{ 1 }{ T2 })\]

  12. petiteme
    • 2 years ago
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    Erase the ?

  13. 0213
    • 2 years ago
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    what is v?

  14. petiteme
    • 2 years ago
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    I got 49.78kj

  15. petiteme
    • 2 years ago
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    Lol. I don't know if i'm right. Ignore me :))

  16. RaphaelFilgueiras
    • 2 years ago
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    volume i dont know if that's right , it's been i while i dont see chemistry

  17. RaphaelFilgueiras
    • 2 years ago
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    lol

  18. 0213
    • 2 years ago
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    sing those number? i dont have V so i dont think i can use that

  19. petiteme
    • 2 years ago
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    You saw my equation?

  20. 0213
    • 2 years ago
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    yea

  21. petiteme
    • 2 years ago
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    Have you tried it?

  22. 0213
    • 2 years ago
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    yea...and i got 43.55...its ok..i will do the question tmr...im just really tired now

  23. petiteme
    • 2 years ago
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    Okies. Just close this question ^_^

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