(1)已知:
催化重整反应的
(2)某温度下,向1 L的密闭容器中充入0.2 mol CH4与0.2 mol CO2,发生催化重整反应,;10 min时达到平衡,测得平衡混合物中CH4(g)的体积分数为12.5%,则CO2的平衡转化率为
(3)已知:常温下CH3COOH的电离常数。常温下,在三元弱酸H3R的水溶液中H3R、、、的分布分数δ(含R元素微粒占全部含R粒子的物质的量分数)随pH的变化如下图所示,其三级电离常数分别表示为:、、。则:Na2HR溶液显
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