Difference between a lattice enthalpy and lattice energy

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Naomi Jennings 2H
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Joined: Thu Jul 13, 2017 3:00 am

Difference between a lattice enthalpy and lattice energy

Postby Naomi Jennings 2H » Fri Jan 19, 2018 11:03 pm

I know that for this chapter we're using enthalpy not energy, but I don't understand what the difference between the lattice enthalpy and the lattice energy even is. If anyone could explain this to me please do thank you!

Sean Monji 2B
Posts: 66
Joined: Fri Sep 29, 2017 7:06 am

Re: Difference between a lattice enthalpy and lattice energy

Postby Sean Monji 2B » Fri Jan 19, 2018 11:21 pm

Lattice energy can be measured as the amount of energy required to break a bond between solid ions into a gas. Lattice enthalpy is the enthalpy change from when the solid structure is formed or broken. Basically, one is to measure the energy of the bond while the other measures the change in enthalpy created by the solid forming/breaking (which is the change in internal energy + the energy produced by the volume times pressure).
Hope that makes sense


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