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2 LiOH(s)→ Li2O(s)+ H2O(l)ΔrH° = 379.1 KJ/mol

Question 56

Multiple Choice

2 LiOH(s) → Li2O(s) + H2O(l) ΔrH° = 379.1 kJ/mol
LiH(s) + H2O(l) → LiOH(s) + H2(g) ΔrH° = -111.0 kJ/mol
2 H2(g) + O2(g) → 2 H2O(l) ΔrH° = -285.9 kJmol
Compute ΔrH° in kJ/mol for 2 LiH(s) + O2(g) → Li2O(s) + H2O(l)


A) +125.2 kJ/mol
B) -17.7 kJ/mol
C) -128.8 kJ/mol
D) -303.6 kJ/mol
E) + 128.8 kJ/mol

Correct Answer:

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