In ΔH = ΔU + Δng RT, what does Δng stand for?
AMoles of all reactants minus products
BTotal moles of all substances
CGas moles in products minus reactants
DChange in the number of solids
Answer & Solution
Correct answer: C. Gas moles in products minus reactants
Only gases contribute to pΔV, so Δng is gaseous product moles minus gaseous reactant moles.
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