Lattice Energy: Part I

General Chemistry (for majors) help! Understanding lattice energy and parts of the Born-Haber cycle.

An alternate definition for lattice energy is: the themal energy required to break the ionic solid into its gaseous ions. If using this definition, the lattice energy values would be the same, but have a positive sign.

Check your textbook to see if you should label the lattice energies as a positive (+) or negative (-) value.

It doesn't really matter how you define it, just make sure you understand that it TAKES energy (+) to break the bond, and RELEASES energy (-) to form the bond.

Category:

Education

Tags:

• lattice
• energy
• electron
• affinity
• bond
• dissociation
• enthalpy
• born-haber
• chemistry
• tutorial

[epicvelocity]

Never heard gaseous pronounced that way, but an excellent video none the less.

[TTUchem1010]

Thanks. I'm from the South, and I prefer ˈga-sē-əs to ˈga-shəs. :) Either way, it's a gas!

[xcguy411]

u need to get paid.

[TGracia93]

I love how you explain everything in every step. thanks!

[Ryuuken24]

Made no sense at all. I can ready the same thing in my old school book, I'm pretty sure you can get a pdf file online for 5 dollars, and it will teach you, while showing pictures to tell, what the heck is going on. I need to see an actual experiment to understand the theory, I don't need wild numbers, nor fancy big words. 765 joules, what does that mean in the real world, how to I achieve that number to get a reaction, do I call Obama, is that how?

[truthfinder47]

Very helpful, thanks for taking the time to make this!

[pavankumartgpk]

Your explaination is really good.Thanx a lot!

[naturallychan]

Thanks a ton! I'm being tested on this tmrw

[Sherin95]

bond fission

homolytic fisson

enthapy change of atomisation

thanks

[SunsetStar0]

thankyou! :D <3

[onionjuicer]

nice, i learned a lot from this video. I LIKE UR ACCENT.

[MADHURAJ999]

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[stepherlou]

I've earned more in the past 10 minutes than I have the past two weeks in lecture. Thank you.

[cthougthz]

This is a GREAT VIDEO!!!!!!