How to find delta H and delta E?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
These represent energy changes in chemistry and physics:
ΔE (change in internal energy): ΔE = q + w
- q = heat added to system
- w = work done on system
ΔH (change in enthalpy): ΔH = ΔE + Δ(PV)
For reactions involving photon energy at specific frequencies: E = hf, where h is Planck's constant and f is frequency
These relate to frequency when studying electromagnetic radiation and quantum energy transitions.
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