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ThermodynamicsMCQ

Given the bond energies, what is the ∆Hf˚ N2H4(g) in kJ·mol–1? N2(g) + 2H2(g) → N2H4(g)Thermodynamics Chemistry Question

Question

Given the bond energies, what is the ∆Hf˚ N2H4(g) in kJ·mol–1?
N2(g) + 2H2(g) → N2H4(g)

A.

156

B.

99

✓ Correct
C.

–99

D.

–156

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