Per NCERT §5.4(e), HESS'S LAW of constant heat summation states which?
AΔH = 0 always
BThe total enthalpy change of a reaction is the same whether it occurs in one step or in several intermediate steps — sum equals overall ΔH
CΔH depends on the path
DEnergy is not conserved
Answer & Solution
Correct answer: B. The total enthalpy change of a reaction is the same whether it occurs in one step or in several intermediate steps — sum equals overall ΔH
Per NCERT §5.4(e), Hess's law: enthalpy is a state function, so steps can be added algebraically.
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