X^2加0.7x等于0.78
    lnk=250.176/(8.314*298)
    lnk=-250.176
    lnk=-250.176/(8.314*298)
    lna=-250.176/(8.314*298)
    -210.9-131.8*10^(-3)*298=a
    lna=-[(-210.9-130.8*298*10^(-3))/(298*8.314)]
    lna=-(-210.9-130.8*298*10^(-3))/(298*8.314)
    lna=(-210.9-130.8*298*10^(-3))/(298*8.314)
    lna=1
    e(((-210.9)-131.8*298)/(8.314*298))=a
    e((131.8*10^(-3))/8.314-(-210.9)/(298*8.314))=a
    (131.8*10^(-3))/8.314-(-210.9)/(298*8.314)=lna
    1.6*a^2-13*a+10.4=0
    1.6*a^2-5.2*a+2.6=0
    a^2/(4+a^2-5a)=2.6
    -3.6*a^2-5.2*a+2.6=0
    -3.6x^2-5.2x-2.6=0
    -3.6x²-5.2x-2.6=0
    100x+550 =120x-630

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