April 26, 2024, 08:12:44 PM
Forum Rules: Read This Before Posting


Topic: Deriving Equations  (Read 2922 times)

0 Members and 1 Guest are viewing this topic.

Offline hope35

  • Regular Member
  • ***
  • Posts: 14
  • Mole Snacks: +0/-0
Deriving Equations
« on: May 24, 2010, 10:47:01 PM »
So I'm suppose to use these 3 equation to get : k= e4.04 + 162.7

The equation I'm suppose to use is :

Pvap=kA

lnPvap = (- Delta Hvap)/RT + I
lnA = lnC - (- Delta Hvap)/RT

Here's what I did

lnkA - I = (- Delta Hvap)/RT
lnA- lnC =  (- Delta Hvap)/RT
lnK + lnA -I = lnA - lnC
lnK = I +lnC
elnk=eI + lnC

NOt sure if this is correct, and also how do I get those values??


Also it says I=integration, A=absorbance, but I have no idea what C is

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27664
  • Mole Snacks: +1801/-410
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Deriving Equations
« Reply #1 on: May 25, 2010, 03:23:58 AM »
NOt sure if this is correct, and also how do I get those values??

Math looks OK, or at least there are no blatant errors. Values - I guess you were given some more information, not only equations?

Quote
Also it says I=integration, A=absorbance, but I have no idea what C is

Does it matter? These are just symbols.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Sponsored Links