Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Calculating ΔS universe for deposition of iodine QUESTION

  1. May 22, 2012 #1
    Use the data below to calculate ΔSuniverse for the deposition of iodine at 298 K.

    ΔfHo (kJ mol–1), ΔS (J K–1 mol–1)
    I2(s) 0.00 , 116
    I2(g) 62 , 261


    a) –353. J K–1 mol–1
    b) –63.1 J K–1 mol–1
    c) +63.1 J K–1 mol–1
    d) +353 J K–1 mol–1
    e) +377 J K–1 mol–1

    ok my working out,

    ΔS=261-116=145J/K/mol

    ΔHf=65-0=62000J/k/mol

    ΔSsurroun=-ΔH/T=62000/298=-208.05Kj/K/mol

    im not sure where to go from here

    Also i know that ΔSuniverse=ΔSsystem+ΔSsurroun

    Any suggestions. Much apreciated
     
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Loading...