Asked by Amy

Calculate the molar entropy of vaporization for liquid hydrogen iodide at its boiling point -34.55 degrees celcius. HI(l) <=> HI(g)
deltaHvap = 19.76 kJ/mol
Answered by DrBob222
delta Hvap = Tvap x delta Svap
Substitute and solve for delta Svap. Don't forget Tvap must be in kelvin. Note the correct spelling of celsius.
Answered by Amy
didn't help me much :? anyone else?
Answered by DrBob222
You can't substitute 19.76 for delta Hvap and divide by -34.55 C (in kelvin, of course) to arrive at DSvap? You must want someone to punch the calculator for you.
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