M=3.6*2=7.2
N2 28 5.2
7.2
H2 2 20.8
n(N2) :n(H2) =5.2:20.8=1:4
N2的质量:0.5*(1/5)*28=2.8g
H2的质量:0.5*(4/5)*2=0.8
N2和H2的质量比:2.8:0.8=7:2
N2 + 3H2 ====2NH3
起:0.1 0.4 0
变:X 3X 2X
平:0.1-X 0.4-3X 2X
(0.1-X+0.4-3X+2X) /0.5 =76%
X=0.06
氮的体积分数:(0.1-0.06)/(0.1-0.06+0.4-0.06*3 +2*0.06)=10.5%
N2转化率:0.06/0.1=60%
H2的转化率:0.06*3/0.4=45%