GKFix MCQ Question

What is the formula for calculating the change in internal energy (∆U) from enthalpy change (∆H)?

• A. ∆U = ∆H + ∆ngRT
• B. ∆U = ∆H – ∆ngRT
• C. ∆U = ∆H × ∆ngRT
• D. ∆U = ∆H / ∆ngRT