Question
Chemistry Question on Thermodynamics
Lattice enthalpy for NaCl is +788 kJ mol-1 and ΔH°hyd= -784 kJ mol-1. Enthaply of solution of NaCl is
A
+572 kJ mol-1
B
+4 kJ mol-1
C
-572 kJ mol-1
D
-4 kJ mol-1
Answer
+4 kJ mol-1
Explanation
Solution
The correct answer is (B) : +4 kJ mol-1.