JEE Main & Advanced
Chemistry
Thermodynamics / रासायनिक उष्मागतिकी
Question Bank
Numerical Value Type Question - Chemical Energetic
question_answer
Calculate the free energy change when 1 mole of \[NaCl\] is dissolved in water at \[25{}^\circ C.\] Lattice energy of \[NaCl\,\,=\,\,777.8\,\,kJ\,\,mo{{l}^{-1}}\,;\] \[\Delta S\,\,for\,\,dissolution\,\,=\,\,0.043\,\,kJ\,\,mo{{l}^{-1}}\,\,;\]and hydration energy of \[NaCI\,\,=\,\,-774.\,\,1\,kJ\,\,mo{{l}^{-1}}.\]