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CHEMISTRY · Subjective · A Level · Chemistry · Energetics · Energetics
Problem Calculate the heat of dissociation of N 2 O 4 \text{N}_2\text{O}_4 N 2 O 4 NO 2 \text{NO}_2 NO 2 N 2 + O 2 ⟶ 2 NO ; Δ H = + 43.10 kcal … ( 1 ) \text{N}_2 + \text{O}_2 \longrightarrow 2\text{NO}; \Delta H = +43.10 \text{ kcal} \dots(1) N 2 + O 2 ⟶ 2 NO ; Δ H = + 43.10 kcal … ( 1 ) N 2 + 2 O 2 ⟶ N 2 O 4 ; Δ H = − 1.870 kcal … ( 2 ) \text{N}_2 + 2\text{O}_2 \longrightarrow \text{N}_2\text{O}_4; \Delta H = -1.870 \text{ kcal} \dots(2) N 2 + 2 O 2 ⟶ N 2 O 4 ; Δ H = − 1.870 kcal … ( 2 ) 2 NO 2 ⟶ 2 NO + O 2 ; Δ H = + 26.10 kcal … ( 3 ) 2\text{NO}_2 \longrightarrow 2\text{NO} + \text{O}_2; \Delta H = +26.10 \text{ kcal} \dots(3) 2 NO 2 ⟶ 2 NO + O 2 ; Δ H = + 26.10 kcal … ( 3 ) Browse the problem library