已知:C(s)+ O2(g)= CO2(g) ΔH1
2CO(g) + O2(g)= 2CO2(g) ΔH2
TiO2(s) + 2Cl2(g) = TiCl4(g) + O2(g) △H3
则反应TiO2(s) + 2Cl2(g) + 2C(s) = TiCl4(g) + 2CO(g)的ΔH等于
A.2ΔH1+ΔH2+ΔH3 | B.△H2- 2ΔH1-△H3 |
C.ΔH1-ΔH2+ ΔH3 | D.2ΔH1-△H2+△H3 |
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