Mg(s) + 2HCl(aq.) → MgCl 2 (aq) + H 2 (g); ∆ r H 0 = – 467 kJ/mol MgO (s) + 2HCl (aq) →…
Chemistry · JEE Advanced · NTA Exams — Chemical Thermodynamics
Mg(s) + 2HCl(aq.) → MgCl2(aq) + H2(g);
∆rH0 = – 467 kJ/mol
MgO (s) + 2HCl (aq) → MgCl2 (aq) + H2O (l ) ;
∆rH0 = – 151 kJ/mol
According to the information, and given the fact that for water, ∆fH0 = – 286 kJ/mol, what is the ∆fH0 for MgO(s) ?
∆rH0 = – 467 kJ/mol
MgO (s) + 2HCl (aq) → MgCl2 (aq) + H2O (l ) ;
∆rH0 = – 151 kJ/mol
According to the information, and given the fact that for water, ∆fH0 = – 286 kJ/mol, what is the ∆fH0 for MgO(s) ?
- – 904 kJ/mol
- – 602 kJ/mol
- – 334 kJ/mol
- – 30 kJ/mol
Answer
(B) – 602 kJ/mol
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