5.解:从HC的红外谱图可得: v(1-2x)=2996 2v2(1-3x)=5668 解得:=3292cm1,x=0.045 而:k=4n2c2p=615Nm1 HC的零点能为: E hUe=×663×10-34×3292×102×2.998×108 2 =3.27×10-20J, molec=19.68KJ.mol-13292 , 0.045 ~ 1 = = − e cm 2 2 1 615 ~ 4 − 而: k = c e = N m 解得: (1 3 ) 5668 ~ 2 (1 2 ) 2996 ~ − = − = e e 5. 解:从HCl的红外谱图可得: 2 0 1 3 4 2 8 0 3.27 10 . 19.68 6.63 10 3292 10 2.998 10 2 1 2 1 − − − = = = = J molec KJ mol E he HCl的零点能为: