One mole of an anhydrous salt AB dissolves in water with the evolution of 21 Jmol -1 of…
Chemistry · JEE Main · NTA Exams — Chemical Thermodynamics
One mole of an anhydrous salt AB dissolves in water with the evolution of 21 Jmol-1 of heat. If the heat of hydration of AB is -29.4 Jmol-1, then the heat involved in the conversion of A+(g) and B-(g) into AB(s) is:
- 50.4 Jmol-1
- 8.4 Jmol-1
- -50.4 Jmol-1
- -8.4 Jmol-1
Answer
(C) -50.4 Jmol -1
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