When do I use ΔH = ΔU + Δn_gRT in Chemical Thermodynamics, and what does it mean?
relating enthalpy and internal energy changes.
ΔH = ΔU + Δn_gRT — relating enthalpy and internal energy changes. Use it when: ideal gases, Δn_g = change in moles of gas. Always check the condition holds before plugging in numbers.
Key point
ΔH = ΔU + Δn_gRT
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