1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Enthalpy change & lattice energy - check please

  1. Nov 10, 2005 #1
    Write the reaction where the enthalpy change is the lattice energy for silver floride. Make sure you include the physical states.

    Ag F (ag) yields Ag Positive(g) + F negative(g)

    Could you please check this
    Thanks
    Could you help with this one: write the equation for the reaction where the enthalpy change represents the lattice energy of iron (III) chloride (FeCl3) Do not forget to include the physical states. Could you get me started?
    Thanks
     
  2. jcsd
  3. Nov 11, 2005 #2

    Gokul43201

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    This is almost correct, but what is "(ag)" ?
    This is just like the other problem. First break up the molecule into individual atoms (FeCl3 breaks up into an Fe atom and 3 Cl atoms). Next you put the correct charges on these atoms to convert them to the appropriate ions. So Fe should be Fe(3+), and each Cl would be... ?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Enthalpy change & lattice energy - check please
  1. Enthalpy changes (Replies: 1)

  2. Enthalpy change? (Replies: 5)

Loading...