The standard heat of formation, in kcal/mol of is :
[Given : standard heat of formation of ion (aq) = –216 kcal/mol, standard heat of crystallisation of (s) = –4.5 kcal/mol, standard heat of formation of (s) = –349 kcal/mol]
[Given : standard heat of formation of ion (aq) = –216 kcal/mol, standard heat of crystallisation of (s) = –4.5 kcal/mol, standard heat of formation of (s) = –349 kcal/mol]
- A.+220.5
- B.–128.5
- C.–133.0
- D.+133.0
Show answer
Correct option: B
[NEET 2025]