Calculate the magnitude of free energy in `KJ mol^(-1)` when `1` mole of a
Channel: Doubtnut
Date: 2020-04-19

Calculate the magnitude of free energy in `KJ mol^(-1)` when `1` mole of a an ionic salt MX (s) is dissolved in water at `27^(@)C` . Given   Lattice energy of MX `= 780 KJ mol^(-1)`   Hydration energy of MX `=-775.0 KJ mol^(-1)`   Entropy change of dissolution at `27^(@)C = 40Jmol^(-1)K^(-1)`