Question

In which of the following equations, the enthalpy change
will represent ∆Hºf of N₂H₄(????) with sign reversed?
(a) N₂(g) + 2H₂(g) → N₂H₄(g)
(b) 2N(g) + 4H(g) → N₂H₄(????)
(c) N₂H₄(????) → 2N(g) + 4H(g)
(d) N₂H₄(????) → N₂(g) + 2H₂(g)

Answer 1

$\huge\bold\red{Answer:-}$

(a) N₂(g) + 2H₂(g) → N₂H₄(g)✔

Answer 2

$\huge{\underline{\mathbb{\red{Answer}}}}$

(a) N₂(g) + 2H₂(g) → N₂H₄(g)

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$\huge{\underline{\underline{\mathfrak{Thank you}}}}$