tyrell884 tyrell884

06-02-2024
Chemistry

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The value of ΔH∘ for the combination reaction below is +180 kJ at constant pressure:
N₂(g)+2O(g)→2NO(g)
The enthalpy change (ΔH) accompanying the reaction of 48 g of O₂ with excess nitrogen gas is kJ.
A. +270
B. -140
C. +140
D. -270

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