What is the standard enthalpy of formation of MgO(s) if 300.9 kJ is evolved when 20.15 g of MgO(s) i — Thermodynamics Chemistry Question
Question
What is the standard enthalpy of formation of MgO(s) if 300.9 kJ is evolved when 20.15 g of MgO(s) is formed by the combustion of magnesium under standard conditions?
A.✓ Correct
–601.8 kJ·mol–1
B.
–300.9 kJ·mol–1
C.
+300.9 kJ·mol–1
D.
+601.8 kJ·mol–1
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