What does the strength of lattice enthalpy of formation depend on?

So, lattice enthalpy of formation is defined as the 'standard enthalpy change when one mole of an ionic crystal lattice is formed from its constituent ions in gaseous form'.The strength of this lattice depends on two factors:1) Sizes of the ions: Larger ions lead to a more positive lattice enthalpy of formation value...forming a weaker lattice. This is because, in larger ions charges become further apart so there are weaker attractive forces between ions.2)Charges on the ions: Higher charge = greater electrostatic attraction between oppositely charged ions leading to a more negative lattice enthalpy value...forming a stronger lattice.

ZA
Answered by Zaynab A. Chemistry tutor

2700 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

Describe the shape of and bonding in a molecule of benzine. Explain why benzene doesn't readily undergo reactions.


What are the special properties of graphite and diamond- why are they different.


How do you deal with remembering all the knowledge required for organic chemistry questions?


How does the reactivity of group 2 elements change down the group, and what is the cause of this trend?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences