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°Ñú×÷ΪȼÁÏ¿Éͨ¹ýÏÂÁÐÁ½ÖÖ;¾¶:
;¾¶¢ñ¡¡C(s)+O2(g)CO2(g)¡¡¦¤H1<0¢Ù
;¾¶¢ò¡¡ÏÈÖƳÉˮúÆø:
C(s)+H2O(g)CO(g)+H2(g)¡¡¦¤H2>0¢Ú
ÔÙȼÉÕˮúÆø:
2CO(g)+O2(g)2CO2(g)¡¡¦¤H3<0¢Û
2H2(g)+O2(g)2H2O(g)¡¡¦¤H4<0¢Ü
Çë»Ø´ðÏÂÁÐÎÊÌâ:
(1);¾¶¢ñ·Å³öµÄÈÈÁ¿ÀíÂÛÉÏ¡¡¡¡¡¡¡¡(Ìî¡°´óÓÚ¡±¡°µÈÓÚ¡±»ò¡°Ð¡ÓÚ¡±);¾¶¢ò·Å³öµÄÈÈÁ¿¡£
(2)¦¤H1¡¢¦¤H2¡¢¦¤H3¡¢¦¤H4µÄÊýѧ¹ØϵʽÊÇ¡¡¡£
(3)ÒÑÖª:¢ÙC(s)+O2(g)CO2(g)¡¡¦¤H1=-393.5 kJ¡¤mol-1
¢Ú2CO(g)+O2(g)2CO2(g)¡¡¦¤H2=-566 kJ¡¤mol-1
¢ÛTiO2(s)+2Cl2(g)TiCl4(s)+O2(g)¡¡¦¤H3=+141 kJ¡¤mol-1
ÔòTiO2(s)+2Cl2(g)+2C(s)TiCl4(s)+2CO(g)µÄ¦¤H=¡¡¡¡¡¡¡¡¡£
(4)ÒÑÖªÏÂÁи÷×éÈÈ»¯Ñ§·½³Ìʽ
¢ÙFe2O3(s)+3CO(g)2Fe(s)+3CO2(g)¡¡¦¤H1=-25 kJ¡¤mol-1
¢Ú3Fe2O3(s)+CO(g)2Fe3O4(s)+CO2(g)¡¡¦¤H2=-47 kJ¡¤mol-1
¢ÛFe3O4(s)+CO(g)3FeO(s)+CO2(g)¡¡¦¤H3=+640 kJ¡¤mol-1
Çëд³öFeO(s)±»CO(g)»¹Ô³ÉFeºÍCO2(g)µÄÈÈ»¯Ñ§·½³Ìʽ¡¡______________________¡£
(1)µÈÓÚ¡¡
(2)¦¤H1=¦¤H2+(¦¤H3+¦¤H4)/2
(3)-80 kJ¡¤mol-1
(4)FeO(s)+CO(g)Fe(s)+CO2(g)¡¡¦¤H=-218 kJ¡¤mol-1
¡¾½âÎö¡¿(1)¸ù¾Ý¸Ç˹¶¨Âɵĺ¬ÒåÖª,;¾¶¢ñ·Å³öµÄÈÈÁ¿µÈÓÚ;¾¶¢ò·Å³öµÄÈÈÁ¿¡£
(2)ÓɸÇ˹¶¨ÂÉ:¢Ù=µÃ¦¤H1=¦¤H2+¦¤H3+¦¤H4¡£
(3)ÓÉ¢Û+2¡Á¢Ù-¢ÚµÃËùÇó·½³Ìʽ,¼´¦¤H=¦¤H3+2¦¤H1-¦¤H2=+141 kJ¡¤mol-1+2¡Á(-393.5 kJ¡¤mol-1)-(-566 kJ¡¤mol-1)=-80 kJ¡¤mol-1¡£
(4)ÓÉÌâÒâ:¢ÜFeO(s)+CO(g)Fe(s)+CO2(g)¡¡¦¤H
Ôò¢Ü=µÃ ¦¤H==-218 kJ¡¤mol-1
ÔòFeO(s)+CO(g)Fe(s)+CO2(g)¡¡¦¤H=-218 kJ¡¤mol-1
ÔÚ2 LÃܱÕÈÝÆ÷ÖнøÐз´Ó¦:mX(g)+nY(g)pZ(g)+qQ(g),ʽÖÐm¡¢n¡¢p¡¢qΪ»¯Ñ§¼ÆÁ¿Êý¡£ÔÚ0~3 minÄÚ,¸÷ÎïÖÊÎïÖʵÄÁ¿µÄ±ä»¯ÈçϱíËùʾ:
¡¡ ÎïÖÊ Ê±¼ä¡¡ | X | Y | Z | Q |
Æðʼ/mol | 0.7 |
| 1 |
|
2 minĩ/mol | 0.8 | 2.7 | 0.8 | 2.7 |
3 minĩ/mol |
|
| 0.8 |
|
ÒÑÖª2 minÄÚv(Q)=0.075 mol¡¤L-1¡¤min-1,,
(1)ÊÔÈ·¶¨ÒÔÏÂÎïÖʵÄÏà¹ØÁ¿:
Æðʼʱn(Y)=¡¡¡¡¡¡¡¡,n(Q)=¡¡¡¡¡¡¡¡¡£
(2)·½³ÌʽÖÐm=¡¡¡¡¡¡¡¡,n=¡¡¡¡¡¡¡¡,p=¡¡¡¡¡¡¡¡,q=¡¡¡¡¡¡¡¡¡£
(3)ÓÃZ±íʾ2 minÄڵķ´Ó¦ËÙÂÊ¡¡¡¡¡¡¡¡¡£