When 2.74 g of Ba(s) reacts with O2(g) at 298 K and 1 atm to form BaO(s), 11,100 J of heat is releas — Thermodynamics Chemistry Question
Question
When 2.74 g of Ba(s) reacts with O2(g) at 298 K and 1 atm to form BaO(s), 11,100 J of heat is released. What is ∆Hf˚ for BaO(s) in kJ·mol–1?
A.
556
B.
221
C.
–221
D.✓ Correct
–556
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