June 05, 2020, 04:34:22 PM
Forum Rules: Read This Before Posting


Topic: Enthalpy Question Help  (Read 1712 times)

0 Members and 1 Guest are viewing this topic.

Offline zombielord

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Enthalpy Question Help
« on: March 12, 2010, 02:03:24 PM »
I would appretiate some help on this question such as which equasion to use

Calculate the reaction enthalpy for the process:
Code: [Select]
½ N2 + 3/2H2 = NH3at a temperature of 700 K, given the following information:
(i) for NH3 (g), (delta H of formation) (298.15 K) = -46.11 kJ mol-1

Thank you for your time

Offline Black Mage

  • Regular Member
  • ***
  • Posts: 21
  • Mole Snacks: +1/-0
  • Gender: Male
Re: Enthalpy Question Help
« Reply #1 on: March 12, 2010, 07:17:07 PM »
I think you might be looking for this formula.

ΔHreactionO = ΣΔHfO (Products) - ΣΔHfO (Reactants)
"Let the future tell the truth and evaluate each one according to his work and accomplishments. The present is theirs; the future, for which I really worked, is mine." - Nikola Tesla

Sponsored Links