CGP Edu

Chemistry Chemical Bonding and Molecular Structure Molecular Orbital Theory Single Correct MCQ

Published on: August 14, 2026

For NaCl, lattice energy = – 186 kcal/mol, the solvation energy of Na + and Cl – are –97 and – 85 kcal/mole respectively. Therefore for NaCl (s)

Enthalpy of solution is exothermic and magnitude equal 4 kcal/mol.

Enthalpy of solution is exothermic and magnitude equal to 368 kcal/mol

Enthalpy of solution is endothermic and magnitude equal to 4 kcal/mol

Enthalpy of solution is endothermic and magnitude equal to 368 kcal/mol

Text Solution

Verified by Experts

The correct answer is:

Δ H solv = –97–85 = –182 kcal/mol

–LE = + 186 kcal/mol

Δ H (solution) = + 186 – 182 = 4 kcal/mol & endothermic

Previous Question Next Question

Get practice questions, solutions, and test series in one place.

Share your experience with this question and solution.

Send your comment, doubt, correction, or feedback to admin.

What students say about this solution

No reviews yet. Be the first to write a review.