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H2(g)+
O2(g)=H2O(g) ΔH1H2(g)+
O2(g)=H2O(l) ΔH22H2(g)+O2(g)=2H2O(l) ΔH3
下列说法错误的是
| A．ΔH1、ΔH2、ΔH3均小于0 | B．2ΔH2=ΔH3 |
| C．ΔH1＞ΔH2 | D．2ΔH1＜ΔH3 |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
