Znn3bq.jpeg
²é¿´: 5304  |  »Ø¸´: 2

ÀÏÄк¢5186

½ð³æ (СÓÐÃûÆø)

[ÇóÖú] ¦¤rUmµÄÇó½â ÒÑÓÐ1È˲ÎÓë

ÔÚ¾øÈÈ¡¢ºãѹ¡¢W'=0µÄÌõ¼þÏÂ,·´Ó¦ H2(g)+0.5O2(g)¡úH2O(g) ¹ý³ÌµÄζÈÓÉ25¡æÉÏÉýµ½5313.34¡æ¡£Ôò´Ë·´Ó¦µÄ¦¤rUm=( )¡£ Çó¸ßÊÖ°ïÖú~
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÖÊÄÜÊØºã1995

Ìú³æ (СÓÐÃûÆø)


¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
xiaoxususy: ½ð±Ò+3, »¶Ó­Ð³棬¶à¶à½»Á÷ 2014-07-08 19:57:47
U=H-pV
dU=dH-d£¨pV£©=dH-pdV
¸Ã¹ý³ÌµÈѹÎÞW¡¯,ËùÒÔdH=¦ÄQ,
ÓÖÒòΪ¹ý³Ì¾øÈÈ£¬ËùÒÔ¦ÄQ=0,
ËùÒÔdU=-pdV   »ý·Öºó¿ÉÒÔµÃ
¦¤U=-p¦¤V=pV1-pV2=nRT1-nRT2
ËùÒÔ¦¤Um=RT1-RT2

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
2Â¥2014-07-05 15:09:04
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÖÊÄÜÊØºã1995

Ìú³æ (СÓÐÃûÆø)


¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï
ÀÏÄк¢5186: ½ð±Ò+5, ¡ïÓаïÖú 2014-07-08 17:12:57
ÒýÓûØÌû:
2Â¥: Originally posted by ÖÊÄÜÊØºã1995 at 2014-07-05 15:09:04
U=H-pV
dU=dH-d£¨pV£©=dH-pdV
¸Ã¹ý³ÌµÈѹÎÞW¡¯,ËùÒÔdH=¦ÄQ,
ÓÖÒòΪ¹ý³Ì¾øÈÈ£¬ËùÒÔ¦ÄQ=0,
ËùÒÔdU=-pdV   »ý·Öºó¿ÉÒÔµÃ
¦¤U=-p¦¤V=pV1-pV2=nRT1-nRT2
ËùÒÔ¦¤Um=RT1-RT2
...

×îºóÄÇÀï´íÁËÒ»µã£¬Ç°ºóµÄn²»Ò»Ñù£¬Äã×Ô¼ºËãÒ»Ëã¾ÍÖªµÀÁË

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
3Â¥2014-07-05 20:19:30
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ ÀÏÄк¢5186 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Ò»Ö¾Ô¸¾©Çø985£¬085401µç×ÓÐÅÏ¢£¬±¾¿Æµç×ÓÐÅÏ¢ +3 Ñô¹â¿ªÀʵÄÄк¢ 2026-04-10 3/150 2026-04-10 16:29 by sophia_93
[¿¼ÑÐ] 265Çóµ÷¼Á +11 ·ç˵ËýÔçÍüÁË 2026-04-10 12/600 2026-04-10 15:52 by ¸ßά´º
[¿¼ÑÐ] 293µ÷¼Á +25 yj1221 2026-04-08 26/1300 2026-04-10 15:02 by ²ñС°×
[¿¼ÑÐ] 080500Çóµ÷¼Á +14 »ÆÓ 2026-04-06 14/700 2026-04-10 13:09 by vgtyfty
[¿¼ÑÐ] 284Çóµ÷¼Á +7 archer.. 2026-04-09 8/400 2026-04-09 21:30 by bljnqdcc
[¿¼ÑÐ] ²ÄÁÏר˶³õÊÔ·Ö332Ò»Ö¾Ô¸Î÷±±¹¤Òµ´óѧ£¬ +12 ¹ÊÈË?? 2026-04-09 12/600 2026-04-09 18:34 by Ccclqqq
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤£¬Çóµ÷¼Á +11 won_qii 2026-04-07 11/550 2026-04-09 17:03 by luoyongfeng
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤×¨Ë¶329 Çóµ÷¼Á +24 ¶îcc 2026-04-06 25/1250 2026-04-09 16:01 by wp06
[˶²©¼ÒÔ°] ÓÐûÓÐѧУ²ÄÁÏרҵÊÕ¿çµ÷(Ò»Ö¾Ô¸085410) +5 momo(Éϰ¶°æ) 2026-04-06 8/400 2026-04-09 15:07 by onlyÖÜ
[¿¼ÑÐ] 086004 Çóµ÷¼Á 309 +7 Yin DY 2026-04-08 7/350 2026-04-09 13:59 by Delta2012
[¿¼ÑÐ] ÉúÎïѧ308·ÖÇóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£© +13 ÏàÐűػá¹ââÍòÕ 2026-04-06 16/800 2026-04-09 13:54 by ÐìÁ¼°×ü´óÏÀ
[¿¼ÑÐ] 070300»¯Ñ§279Çóµ÷¼Á +17 ¹þ¹þ¹þ^_^ 2026-04-08 18/900 2026-04-09 10:49 by ÈýÆßÆßÏëÉϰ¶
[¿¼ÑÐ] Çóµ÷¼Á +3 ÖíÈâ¶Õ·ÛÌõcc 2026-04-08 4/200 2026-04-09 10:05 by ÖíÈâ¶Õ·ÛÌõcc
[¿¼ÑÐ] Çóµ÷¼Á +7 chenxrlkx 2026-04-05 9/450 2026-04-09 09:04 by wj165256
[¿¼ÑÐ] 263·ÖBÇøÇóµ÷¼Á +6 Àînihao 2026-04-08 6/300 2026-04-08 09:38 by ÄÏ¿ªÐ¡ôë
[¿¼ÑÐ] 298Çóµ÷¼Á +4 ²ÐºÉÐÂÁø 2026-04-07 4/200 2026-04-07 23:02 by lbsjt
[¿¼ÑÐ] 26×ÔÈ»µØÀíѧ303·ÖÇóµ÷¼Á +4 Ò»Õ½³É˶°¡°¡°¡° 2026-04-06 9/450 2026-04-06 20:35 by lin-da
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +9 ¸ï΢¹ð 2026-04-04 9/450 2026-04-05 08:27 by 544594351
[¿¼ÑÐ] ÄÐÉú£¬Ò»Ö¾Ô¸»¦9ÉúÎïѧ071000£¬³õÊÔ308Çóµ÷¼Á +3 Áõīī 2026-04-04 3/150 2026-04-05 08:26 by barlinike
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄÏÅ©090401£¬268£¬Çóµ÷¼Á +5 һľÄñÈ» 2026-04-04 5/250 2026-04-04 17:07 by babysonlkd
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û