若反应气体都是理想气体，反应平衡常数之间有
的反应是：(1) 2HI(g) = H2(g) + I2(g)(2) N2O4(g) = 2NO2(g)(3) CO(g) + H2O(g) = CO2(g) + H2(g)(4) C(s) + CO2(g) = 2CO(g)
A (1)(2)
B (1)(3)
C (3)(4)
D (2)(4)
的反应是：(1) 2HI(g) = H2(g) + I2(g)(2) N2O4(g) = 2NO2(g)(3) CO(g) + H2O(g) = CO2(g) + H2(g)(4) C(s) + CO2(g) = 2CO(g)A (1)(2)
B (1)(3)
C (3)(4)
D (2)(4)