A-LevelChemistryEquilibria9701/12 · Oct/Nov 2009 · Q71 Mark
The equilibrium N2(g) + O2(g) ⇌ 2NO(g) ΔΗ= +180 kJ mol-1 contributes to a series of reactions producing photochemical smog. Which factors would affect the value of Kp of the above equilibrium? [Figure 7.1]
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Achange in pressure: ✓, change in temperature: ✓, presence or absence of a catalyst: x
Bchange in pressure: ✓, change in temperature: x, presence or absence of a catalyst: ✓
Cchange in pressure: x, change in temperature: ✓, presence or absence of a catalyst: ✓
Dchange in pressure: x, change in temperature: ✓, presence or absence of a catalyst: x
✓ Correct answer
D: change in pressure: x, change in temperature: ✓, presence or absence of a catalyst: x
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