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ThermochemistryMCQ

Given O(g) + e–(g)  O–(g) ∆Hº = –142 kJ mol–1 O(g) + 2 e–(g)  O2–(g) ∆Hº = +702 kJ mol–1 What is ∆Thermochemistry Chemistry Question

Question

Given
O(g) + e–(g)  O–(g) ∆Hº = –142 kJ mol–1
O(g) + 2 e–(g)  O2–(g) ∆Hº = +702 kJ mol–1
What is ∆Hº for the following reaction?
O–(g) + e–(g)  O2–(g)

A.

–844 kJ mol–1

B.

–560 kJ mol–1

C.

+560 kJ mol–1

D.

+844 kJ mol–1

✓ Correct
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