GKFix MCQ Question

What is the formula used to calculate ∆vapU from ∆vapH⁰?

• A. ∆vapU = ∆vapH⁰ + pV
• B. ∆vapU = ∆vapH⁰ – V∆p
• C. ∆vapU = ∆vapH⁰ – ∆n_gRT
• D. ∆vapU = q + w