已知热化学方程式 C(g)+O2(g)=CO2(g); △H=-393.5kJ/mol H2(g)+1/2O2(g)=h2o(g); △H=-28.58kJ/mol

日期:2021-05-03 04:43:43 人气:1

已知热化学方程式 C(g)+O2(g)=CO2(g); △H=-393.5kJ/mol H2(g)+1/2O2(g)=h2o(g); △H=-28.58kJ/mol

H2(g)+1/2O2(g)=h2o(g); △H=-285.8kJ/mol
n(C)x393.5=n(H2)x285.8
n(c)/n(H2)=285.8/393.5
m(c)/m(H2)=285.8x12/393.5x2=4.36:1
    A+
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