alleryFor a gas reaction with ∆ng = +1 at 300 K, ∆H - ∆U is about:
A+24.9 kJ/mol
B+0.30 kJ/mol
C-2.49 kJ/mol
D+2.49 kJ/mol
Answer & Solution
Correct answer: D. +2.49 kJ/mol
∆H - ∆U = ∆ngRT = 1 x 8.314 x 300 J = 2494 J, about +2.49 kJ/mol.
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