What is lattice enthalpy? Give an example.
(N/A) Lattice enthalpy of an ionic solid is defined as the energy required to completely separate one mole of a solid ionic compound into its gaseous constituent ions.
Example: The lattice enthalpy of $NaCl$ is $788 \ kJ \ mol^{-1}$. This means that $788 \ kJ$ of energy is required to separate one mole of solid $NaCl$ into one mole of $Na_{(g)}^{+}$ and one mole of $Cl_{(g)}^{-}$ ions at an infinite distance.
Example: The lattice enthalpy of $NaCl$ is $788 \ kJ \ mol^{-1}$. This means that $788 \ kJ$ of energy is required to separate one mole of solid $NaCl$ into one mole of $Na_{(g)}^{+}$ and one mole of $Cl_{(g)}^{-}$ ions at an infinite distance.
Explore More
Similar Questions
Potash alum is a
Easy
View SolutionIn silicon dioxide $(SiO_2)$,what is the structural arrangement of atoms?
MediumAIEEE 2005
View SolutionMatch the type of interaction in Column $I$ with the distance dependence of their interaction energy in Column $II$:
$I$. Ion-ion $a$. $1/r$ $II$. Dipole-dipole $b$. $1/r^{2}$ $III$. London dispersion $c$. $1/r^{3}$ $d$. $1/r^{6}$
| $I$. Ion-ion | $a$. $1/r$ |
| $II$. Dipole-dipole | $b$. $1/r^{2}$ |
| $III$. London dispersion | $c$. $1/r^{3}$ |
| $d$. $1/r^{6}$ |
What is the cause of metallic luster?
Easy
View SolutionWhat are the intermolecular forces present between $H_2$ and $HCl$ molecules? Why?
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo