Химия дефектов. Семенова Г.В - 8 стр.

UptoLike

ВУЗ: 

ВГУ | Воронеж

Составители: 

Рубрика: 

8
Baf_g_gb_ kl_obhf_ljbq_kdh]h khklZ\Z djbklZeeZ \hafh`gh _keb \ g_f
ihy\eyxlky^hfbgbjmxsb_lhq_qgu_^_n_dludZdh]h
-
eb[hh^gh]h\b^ZIhijZ
\bem nZa =b[[kZ ^\monZagh_ jZ\gh\_kb_\[bgZjghc kbkl_f_ [b\ZjbZglgh ih
wlhfmkhklZ\obfbq_kdh]hkh_^bg_gbyZagZqblbdhgp_gljZpby^hfbgbjmxsbo
^_n_dlh\g_kl_obhf_ljbbaZ\bkylhl\g_rgbomkeh\bc - ^Z\e_gbyiZjZbl_fi_
jZlmju GZijbf_j ^ey jZ\gh\_kby kh_^bg_gby$
m
B
n
kiZjhf h^gh]h ba dhfih
g_glh\bf__f
A(g) ↔ A
×
A
+ V
•
B
+ e′
K = [V
•
B
] n / P
A
= [V
•
B
]
2
/ P
A
; [V
•
B
] = K
1/2
P
A
1/2
GhdhgklZglZjZ\gh\_kby.aZ\bkblhll_fi_jZlmjuihwlhfm
[V
•
B
] = P
A
1/2
exp{
∆
S/ 2k} exp { -
∆
H / 2kT}, (1)
]^_
∆
S,
∆
H -baf_g_gb_wgljhibbbwglZevibb\ijhp_kk_d\Zabobfbq_kdhcj_Zd
pbbMjZ\g_gb_mdZau\Z_lgZk\yavhldehg_gbyhlkl_obhf_ljbbkhkgh\gufb
l_jfh^bgZfbq_kdbfbiZjZf_ljZfbJZkkfhlj_ggZyko_fZkZfhijhba\hevgh]hhl
dehg_gbyhl kl_obhf_ljbb fh`_l [ulv iheh`_gZ\hkgh\mbkdmkkl\_ggh]hijb
gm^bl_evgh]h ^_n_dlhh[jZah\Zgby ijb baf_g_gbb \g_rgbo mkeh\bc \jZkkfhl
j_gghfijbf_j_-\mkeh\b yoih\ur_ggh]h^Z\e_gbyiZjZdhfihg_glZ:
<hijhku
1. DZdb_ ijhp_kku ^_n_dlhh[jZah\Zgby \ djbklZeebq_kdbo kh_^bg_gbyo fh]ml
ijb\_klbdhldehg_gbxhlkl_obhf_ljbb"Ijb\_^bl_ijbf_ju
2. Fh`gh eb ihemqblv djbklZee [bgZjgh]h kh_^bg_gby kl_obhf_ljbq_kdh]h kh
klZ\Z";m^mlebijbkmlkl\h\Zlv\g_flhq_qgu_^_n_dlu"
3. <dZdbo_^bgbpZo\ujZ`Z_lky\_ebqbgZhldehg_gbyhlkl_obhf_ljbb"
4. G_h[oh^bfhihemqblvdjbklZeekh_^bg_gbyFOO-e_lmqbcdhfihg_glkaZ
^Zgghc\_ebqbghchldehg_gby hl kl_obhf_ljbbDZdb_l_ogheh]bq_kdb_iZjZ
f_ljukbgl_aZgZ^hijbwlhfkljh]hdhgljhebjh\Zlv" 
                                           8


      Baf_g_gb_ kl_obhf_ljbq_kdh]h khklZ\Z djbklZeeZ \hafh`gh _keb \ g_f
ihy\eyxlky^hfbgbjmxsb_lhq_qgu_^_n_dludZdh]h-eb[hh^gh]h\b^ZIhijZ
\bem nZa =b[[kZ ^\monZagh_ jZ\gh\_kb_  \ [bgZjghc kbkl_f_ [b\ZjbZglgh ih
wlhfmkhklZ\obfbq_kdh]hkh_^bg_gbyZagZqblbdhgp_gljZpby^hfbgbjmxsbo
^_n_dlh\g_kl_obhf_ljbbaZ\bkylhl\g_rgbomkeh\bc-^Z\e_gbyiZjZbl_fi_
jZlmju GZijbf_j ^ey jZ\gh\_kby kh_^bg_gby $mBn k iZjhf h^gh]h ba dhfih
g_glh\bf__f
                 A(g) ↔ A×A + V•B + e′
                 K = [V•B] n / PA = [V•B]2 / PA ; [V•B] = K1/2PA1/2
GhdhgklZglZjZ\gh\_kby.aZ\bkblhll_fi_jZlmjuihwlhfm
                 [V•B] = PA1/2 exp{∆S/ 2k} exp { - ∆H / 2kT},         (1)
]^_∆S, ∆H -baf_g_gb_wgljhibbbwglZevibb\ijhp_kk_d\Zabobfbq_kdhcj_Zd
pbbMjZ\g_gb_  mdZau\Z_lgZk\yavhldehg_gbyhlkl_obhf_ljbbkhkgh\gufb
l_jfh^bgZfbq_kdbfbiZjZf_ljZfbJZkkfhlj_ggZyko_fZkZfhijhba\hevgh]hhl
dehg_gby hl kl_obhf_ljbb fh`_l [ulv iheh`_gZ\hkgh\mbkdmkkl\_ggh]hijb
gm^bl_evgh]h ^_n_dlhh[jZah\Zgby ijb baf_g_gbb \g_rgbo mkeh\bc \ jZkkfhl
j_gghfijbf_j_-\mkeh\byoih\ur_ggh]h^Z\e_gbyiZjZdhfihg_glZ: 

Страницы