Which relation links ∆H and ∆U for a reaction of ideal gases?
A∆H = ∆U + ∆ngRT
B∆H = ∆U x ∆ngRT
C∆H = ∆U + ∆ngR/T
D∆H = ∆U - ∆ngRT
Answer & Solution
Correct answer: A. ∆H = ∆U + ∆ngRT
At constant p and T, p∆V equals ∆ngRT, which is added to ∆U to give ∆H.
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