An experimental data is given, N2(g) + 3...

An experimental data is given, `N_2(g) + 3H_2(g) rarr 2NH_3(g)`, `Delta H = -91.8 kJ//mol`
From the abov data calculate `DeltaH` values for the following reactions.
`2NH_3(g) rarr N_2(g) + 3H_2(g)`, `DeltaH` = ?

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