January 15, 2025, 03:45:53 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Need a Thermochem Genius!  (Read 2176 times)

0 Members and 1 Guest are viewing this topic.

Offline Buckeye125

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Need a Thermochem Genius!
« on: July 17, 2011, 06:25:02 PM »
This question has stumped me. I have tried everything I can think of, but alas I cannot determine the right answer. If anyone can help, it'd be much appreciated!

Consider the reaction: X2 (g) :rarrow: 2X (g) . When a vessel initially containing 774 torr of X2  comes to equilibrium at 298K , the equilibrium partial pressure of X is 95.0 . The same reaction is repeated with an initial partial pressure of 795 torr of X2  at 720 K ; the equilibrium partial pressure of X is 523 torr .
Find change in enthalpy (delta H) for reaction.
Logged

Offline Jorriss

  • Chemist
  • Full Member
  • *
  • Posts: 523
  • Mole Snacks: +41/-14
Re: Need a Thermochem Genius!
« Reply #1 on: July 18, 2011, 12:58:29 AM »
Can you find the equilibrium constants at either temperature? If so, do you know any relationships between equilibrium constants are different temperatures?
Logged

Offline BluePill

  • Full Member
  • ****
  • Posts: 100
  • Mole Snacks: +6/-2
  • Gender: Male
  • Difficult is never synonymous to impossible.
Re: Need a Thermochem Genius!
« Reply #2 on: July 18, 2011, 01:51:43 AM »
Clausius-Clapeyron.
Logged
Pages: [1]   Go Up
« previous next »
Sponsored Links