What does “Hess's law” actually mean in Chemical Thermodynamics, and why does it matter for NEET?
the total enthalpy change is the same no matter the route taken.
In simple words: the total enthalpy change is the same no matter the route taken. Getting Hess's law clear matters because NEET questions on Chemical Thermodynamics usually test this idea directly, not just a formula you memorised.
Key point
Hess's law
Common mistake
thinking ΔH depends on the reaction path.
Memory tip
enthalpy is a state function — add steps freely.
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