ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ì¼¼°Æ仯ºÏÎïÓëÈËÀàµÄÉú»î¡¢Éú²ú½ôÃÜÁªÏµ¡£
£¨1£©ÒÑÖª2g¼×ÍéÍêȫȼÉÕÉú³ÉÎȶ¨µÄÑõ»¯Îïʱ·Å³öQ kJµÄÈÈÁ¿,д³ö±íʾ¼×ÍéȼÉÕÈȵÄÈÈ»¯Ñ§·½³Ìʽ£º___________
£¨2£©ÒÑÖª£ºC(s)£«H2O(g)=CO(g)£«H2(g) ¦¤H£½£«130 kJ¡¤mol£1£¬2C(s)£«O2(g)=2CO(g) ¦¤H£½£220 kJ¡¤mol£1¡£¶Ï¿ª1 mol H¡ªH¼ü¡¢O===O¼ü·Ö±ðÐèÒªÎüÊÕ436 kJ¡¢496 kJµÄÈÈÁ¿£¬Ôò¶Ï¿ª1 mol O¡ªH¼üÐèÒªÎüÊÕµÄÈÈÁ¿Îª___________
A£®332 kJ B£®462 kJ C£®118 kJ D£®360 kJ
£¨3£©ÒÔCO2ºÍH2OΪÔÁÏÖƱ¸HCOOHºÍO2µÄÔµç³ØÔÀíÈçͼ£®
µç¼«aΪ_____(Ìî¡°Õý¡±»ò¡°¸º¡±)¼«£¬µç¼«b·¢ÉúµÄµç¼«·´Ó¦Ê½ÊÇ£º___________________£®
¡¾´ð°¸¡¿ CH4(g)+2O2(g)=CO2(g)+2H2O(l)¡÷H=-8QkJ/mol£¨ÏµÊý²»Äܱ䣩 B ¸º 2CO2+4e-+4H+=2HCOOH
¡¾½âÎö¡¿ÊÔÌâ·ÖÎö£º
£¨1£©ÓÉ2g¼×ÍéÍêȫȼÉÕÉú³ÉÎȶ¨µÄÑõ»¯Îïʱ·Å³öQ kJµÄÈÈÁ¿£¬¿ÉÒÔ¼ÆËã³ö1mol¼×Í飨16g£©ÍêȫȼÉÕÉú³ÉÎȶ¨µÄÑõ»¯Îïʱ·Å³ö8Q kJµÄÈÈÁ¿£¬ËùÒÔ¼×ÍéȼÉÕÈȵÄÈÈ»¯Ñ§·½³ÌʽΪCH4(g)+2O2(g)=CO2(g)+2H2O(l)¡¡¡¡¡÷H=-8QkJ/mol ¡£
£¨2£©ÒÑÖª¢ÙC(s)£«H2O(g)=CO(g)£«H2(g) ¦¤H£½£«130 kJ¡¤mol£1£¬¢Ú2C(s)£«O2(g)=2CO(g) ¦¤H£½£220 kJ¡¤mol£1£¬ÓÉ¢Ú-¢Ù2µÃ£¬2H2(g)£«O2(g)= 2H2O(g)£¬¦¤H£½£220 kJ¡¤mol£1 -£¨£«130 kJ¡¤mol£1£©2=-480 kJ¡¤mol£1¡£¶Ï¿ª1 mol H¡ªH¼ü¡¢O===O¼ü·Ö±ðÐèÒªÎüÊÕ436 kJ¡¢496 kJµÄÈÈÁ¿£¬Éè¶Ï¿ª1 mol O¡ªH¼üÐèÒªÎüÊÕµÄÈÈÁ¿Îªx£¬Ôò2£¬½âÖ®µÃ£¬x=462. Ôò¶Ï¿ª1 mol O¡ªH¼üÐèÒªÎüÊÕµÄÈÈÁ¿Îª462 kJ £¬Ñ¡B¡£
£¨3£©ÒÔCO2ºÍH2OΪÔÁÏÖƱ¸HCOOHºÍO2µÄÔµç³Ø×Ü·´Ó¦Îª2CO2+2H2O=2HCOOH+O2£¬ÓÉͼ¿ÉÖª£¬µç¼«aÉÏË®±äΪÑõÆø£¬·¢ÉúÁËÑõ»¯·´Ó¦£¬ËùÒԵ缫aΪ¸º¼«£¬µç¼«·´Ó¦Ê½Îª2H2O+4e- = 4H++O2¡£µç¼«bΪÕý¼«£¬bµç¼«ÉÏ·¢Éú»¹Ô·´Ó¦£¬¶þÑõ»¯Ì¼±»»¹ÔΪ¼×Ëᣬµç¼«b·¢ÉúµÄµç¼«·´Ó¦Ê½ÊÇ2CO2+4e-+4H+=2HCOOH¡£
¡¾ÌâÄ¿¡¿ÏÂÁÐÄÚÈÝÓë½áÂÛ²»¶ÔÓ¦µÄÊÇ
Ñ¡Ïî | ÄÚÈÝ | ½áÂÛ |
A | H2O(g)±ä³ÉH2O(l) | ¸Ã¹ý³ÌµÄ¦¤S£¼0 |
B | ÏõËáï§ÈÜÓÚË®¿É×Ô·¢½øÐÐ | ÒòΪ¦¤S£¾0 |
C | Ò»¸ö·´Ó¦µÄ¦¤H£¾0¡¢¦¤S£¾0 | ¸Ã·´Ó¦Ò»¶¨²»ÄÜ×Ô·¢½øÐÐ |
D | H2(g)£«F2(g)=2HF(g) ¦¤H£½£271 kJ¡¤mol£1¡¢ ¦¤S£½8 J¡¤mol£1¡¤K£1 | ¸Ã·´Ó¦ÔÚÈκÎζÈϾù¿É×Ô·¢½øÐÐ |
A.AB.BC.CD.D
¡¾ÌâÄ¿¡¿Ï±íÊÇÑõ×岿·ÖÔªËصÄÏà¹ØÐÔÖÊ¡£
ÔªËØ ÐÔÖÊ | 8O | 16S | 34Se | 52Te |
Ö÷Òª»¯ºÏ¼Û | -2 | -2¡¢+4¡¢+6 | -2¡¢+4¡¢+6 | |
Ô×Ӱ뾶 | Öð½¥Ôö´ó | |||
µ¥ÖÊÓëH2 ·´Ó¦Çé¿ö | µãȼʱ Ò×»¯ºÏ | ¼ÓÈÈ »¯ºÏ | ¼ÓÈÈ ÄÑ»¯ºÏ | ²»ÄÜ Ö±½Ó»¯ºÏ |
Çë»Ø´ðÏÂÁÐÎÊÌâ:
£¨1£©ÎøÔÚÖÜÆÚ±íÖÐλÖÃ____¡£
£¨2£©íڵĻ¯ºÏ¼Û¿ÉÄÜÓÐ____¡£
£¨3£©Áò¡¢Îø¡¢íÚµÄÇ⻯ÎïË®ÈÜÒºµÄËáÐÔÓÉÇ¿ÖÁÈõµÄ˳ÐòÊÇ__________(Ìѧʽ)¡£
£¨4£©ÇâÎøËáÓнÏÇ¿µÄ____(Ìî¡°Ñõ»¯ÐÔ¡±»ò¡°»¹ÔÐÔ¡±),Òò´Ë·ÅÔÚ¿ÕÆøÖÐÒ×±äÖÊ,Æä¿ÉÄÜ·¢ÉúµÄ»¯Ñ§·½³ÌʽΪ_____________¡£
£¨5£©Ñõ×åÔªËص¥ÖÊÓëH2·´Ó¦¹ý³ÌÖеÄìʱäÈçͼËùʾ,ÆäÖÐa¡¢b¡¢c¡¢d·Ö±ð±íʾÑõ×åÖÐijһԪËصĵ¥ÖÊ¡£Ôòb´ú±í___,d´ú±í___(¾ùдµ¥ÖÊÃû³Æ)¡£