Given the thermochemical equations X, +3 Y, - → 2XY; AH1 = -330 kJ X, + 2Z, 2 XZ, AH2 = -190 kJ %3D 2 Y, + Z, → 2Y,Z AH3 = -260 kJ Calculate the change in enthalpy for the reaction. 4 XY, + 7Z, → 6 Y,Z + 4 XZ, ΔΗ= kJ

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Given the thermochemical equations
X, + 3 Y, 2XY,
AH = -330 kJ
X, + 2Z,
→ 2 XZ,
AH2 = -190 kJ
2 Y, + Z, → 2Y,Z
AH = -260 kJ
Calculate the change in enthalpy for the reaction.
4 XY, + 7Z, → 6 Y,Z + 4 XZ,
ΔΗ =
kJ
étv
X
w
MacBook Air
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Transcribed Image Text:Question 9 of 41 > Given the thermochemical equations X, + 3 Y, 2XY, AH = -330 kJ X, + 2Z, → 2 XZ, AH2 = -190 kJ 2 Y, + Z, → 2Y,Z AH = -260 kJ Calculate the change in enthalpy for the reaction. 4 XY, + 7Z, → 6 Y,Z + 4 XZ, ΔΗ = kJ étv X w MacBook Air DI DD 80 888 F11 F12 F10 F7 FB F3 F4 F5 F6 23 delete
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