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2B. H2(g) +1O2(g)£½H2O(l)£»¡÷H = £241.8 kJ/mol
2C. H2(g) +1O2(g)£½H2O(l)£»¡÷H = £«285.9 kJ/mol
2D. H2(g) +1O2(g)£½H2O(l)£»¡÷H = £«241.8 kJ/mol
26. ÒÒ´¼ÆûÓÍÊÇÒ»ÖÖÓÉÁ¸Ê³¼°¸÷ÖÖÖ²ÎïÏËά¼Ó¹¤³ÉµÄȼÁÏÒÒ´¼ºÍÆÕͨÆûÓͰ´Ò»¶¨±ÈÀý»ìÅäÐγɵÄ
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B. ʹÓÃÒÒ´¼ÆûÓÍÓÐÖúÓÚ´Ù½øÁ¸Ê³£¨ÌرðÊdzÂÁ¸£©×ª»¯£¬Ìá¸ßÅ©ÃñÊÕÈ룬´Ù½ø¾¼Ã·¢Õ¹ C. ʹÓÃÒÒ´¼ÆûÓͿɴó´ó½µµÍÓÍÁϼ۸ñ D. ÒÒ´¼ÊǶþ¼¶ÄÜÔ´£¬Ò²ÊÇÒ»ÖÖ¿ÉÔÙÉúÄÜÔ´ ¶þ¡¢Ñ¡ÔñÌ⣨¶àÑ¡£¬1¡«2¸öÑ¡Ïî·ûºÏÌâÒ⣬¹²36·Ö£©
7. ÒÑÖªZn(s)+H2SO4(aq)£½ZnSO4(aq)+H2(g)£»¡÷H< 0£¬ÔòÏÂÁйØÓڸ÷´Ó¦µÄÐðÊö²»ÕýÈ·µÄÊÇ A. ¸Ã·´Ó¦Öоɼü¶ÏÁÑÐèÒªÎüÊÕÄÜÁ¿£¬Ð¼üÐγÉÐèÒª·Å³öÄÜÁ¿£¬ËùÒÔ×ÜÄÜÁ¿²»±ä B. ÉÏÊöÈÈ»¯Ñ§·½³ÌʽÖеġ÷HµÄÖµÓë·´Ó¦ÎïµÄÓÃÁ¿ÎÞ¹Ø C. ¸Ã·´Ó¦µÄ»¯Ñ§ÄÜ¿ÉÒÔת»¯µçÄÜ D. ·´Ó¦ÎïµÄ×ÜÄÜÁ¿¸ßÓÚÉú³ÉÎïµÄ×ÜÄÜÁ¿ 8. ÏÂÁÐ˵·¨»ò±íʾ·½·¨ÖÐÕýÈ·µÄÊÇ
A. µÈÖÊÁ¿µÄÁòÕôÆøºÍÁò»Ç·Ö±ðÍêȫȼÉÕ£¬ºóÕ߷ųöµÄÈÈÁ¿¶à B. ÇâÆøµÄȼÉÕÈÈΪ285.5 kJ/mol£¬ÔòÇâÆøÈ¼ÉÕµÄÈÈ»¯Ñ§·½³ÌʽΪ£º 2H2(g) + O2(g)£½2H2O(l) ¡÷H = £285.5 kJ/mol
C. Ba(OH)2¡¤8H2O(s) + 2NH4Cl(s)£½BaCl2(s) +2NH3(g) +10H2O(l)£»¡÷H< 0 D. ÒÑÖªÖкÍÈÈΪ57.3 kJ/mol£¬Èô½«º¬ÓÐ0.5 mol H2SO4µÄŨÈÜÒºÓ뺬ÓÐ1 mol NaOH µÄÈÜÒº»ìºÏ£¬·Å³öµÄÈÈÁ¿Òª´óÓÚ57.3 kJ
9. ͬÎÂͬѹÏ£¬ÏÂÁи÷ÈÈ»¯Ñ§·½³Ìʽ£¨¡÷H¾ùСÓÚ0£©ÖУ¬·´Ó¦ÈȾø¶ÔÖµ×î´óµÄÊÇ A. 2A(l) + B(l)£½2C(g)£»¡÷H1 B. 2A(g) + B(g)£½2C(g)£»¡÷H2 C. 2A(l) + B(l)£½2C(l)£»¡÷H3 D. 2A(g) + B(g)£½2C(l)£»¡÷H4
10. º¬11.2 g KOHµÄÏ¡ÈÜÒºÓë1 L 0.1mol/LµÄÁòËáÈÜÒº·´Ó¦·Å³ö11.46 kJµÄÈÈÁ¿£¬Ôò±íʾ¸Ã·´Ó¦µÄÖкÍÈȵÄÈÈ»¯Ñ§·½³ÌʽÕýÈ·µÄÊÇ A. KOH(aq) +
11H2SO4(aq)£½K2SO4(aq) + H2O(l)£»¡÷H = £11.46 kJ/mol 22B. 2KOH(aq) +H2SO4(aq)£½K2SO4(aq) + 2H2O(aq)£»¡÷H = £114.6 kJ/mol C. 2KOH(aq) +H2SO4(aq)£½K2SO4(aq) + 2H2O(l)£»¡÷H = £114.6 kJ/mol D. KOH(aq) +
11H2SO4(aq)£½K2SO4(aq) + H2O(l)£»¡÷H = £57.3 kJ/mol 2211. ÒÑÖª25¡æ 101 kPaÏ£º¢Ù 4Al(s) + 3O2(g)£½2Al2O3(s)£»¡÷H = £2834.9 kJ/mol
¢Ú 4Al(s) + 2O3(g)£½2Al2O3(s)£»¡÷H = £3419.4 kJ/mol£¬Óɴ˵óöµÄÕýÈ·½áÂÛÊÇ A. µÈÖÊÁ¿µÄO2±ÈO3ÄÜÁ¿µÍ£¬ÓÉO2¡úO3ΪÎüÈÈ·´Ó¦ B. µÈÖÊÁ¿µÄO2±ÈO3ÄÜÁ¿µÍ£¬ÓÉO2¡úO3Ϊ·ÅÈÈ·´Ó¦ C. O3±ÈO2Îȶ¨£¬ÓÉO2¡úO3ΪÎüÈÈ·´Ó¦ D. O2±ÈO3Îȶ¨£¬ÓÉO2¡úO3Ϊ·ÅÈÈ·´Ó¦
12. ÒÑÖª±ê×¼×´¿öÏÂ5.6 LCOÍêȫȼÉշųöµÄÈÈÁ¿ÄÜʹ200 g 15.5¡æµÄˮζÈÉý¸ßµ½100¡æ£¬Ë®
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1O2(g)£½CO2(g)£»¡÷H = £282.95 kJ/mol 2B. 2CO(g) +O2(g)£½2CO2(g)£»¡÷H = £565.9 kJ/mol
1O2(g)£½CO2(g)£»¡÷H = £70.7 kJ/mol 21D. CO(g) +O2(g)£½CO2(g)£»¡÷H = £565.9 kJ/mol
2C. CO(g) +
13. ÔÚÏàͬζÈÏ£¬ÏÂÁÐ3¸ö»¯Ñ§·´Ó¦Öеķ´Ó¦ÈÈ·Ö±ðÒÔ¡÷H1¡¢¡÷H2¡¢¡÷H3±íʾ£º ¢Ù2H2(g)+O2(g)£½2H2O(g)£»¡÷H1 ¢Ú2H2(g)+O2(g)£½2H2O(l)£»¡÷H2 ¢ÛH2(g)+
1O2(g)£½H2O(g)£»¡÷H3£¬Ôò¡÷H1¡¢¡÷H2ºÍ¡÷H3µÄ¹ØÏµÕýÈ·µÄÊÇ 2 A. ¡÷H1 <¡÷H2£¬¡÷H2£½2¡÷H3 B. ¡÷H1£½¡÷H2£½¡÷H3
C. ¡÷H1 >¡÷H2£¬¡÷H1£½2¡÷H3 D. ÎÞ·¨±È½Ï
14. 1 mol CH4ÆøÌåÍêȫȼÉÕÉú³ÉCO2(g)ºÍH2O(g)·Å³öµÄÈÈÁ¿ÊÇ802 kJ£¬µ«µ±²»ÍêȫȼÉÕÉú³ÉCO(g)ºÍH2O(g)·Å³öµÄÈÈÁ¿ÊÇ519 kJ£¬Èç¹û½«1 mol CH4ÓëÒ»¶¨Á¿µÄO2ȼÉÕÉú³ÉCO(g)¡¢CO2(g)ºÍH2O(g)£¬²¢Êͷųö660.5 kJµÄÈÈÁ¿£¬ÔòÒ»¶¨Á¿µÄO2µÄÖÊÁ¿Îª
A. 32 g B. 48 g C. 56 g D. 64 g
15. ÒÑÖªÔÚ101kPaʱ£¬C(ʯī)¡¢H2ºÍCOµÄȼÉÕÈÈ·Ö±ðΪ393.5 kJ/mol¡¢285.8 kJ/molºÍ282.8 kJ/mol¡£ÏÖÓÐH2ºÍCO×é³ÉµÄ»ìºÏÆøÌå112 L£¨±ê¿ö£©£¬¾³ä·ÖȼÉպ󣬷ųö×ÜÈÈÁ¿Îª1420kJ£¬²¢Éú³ÉҺ̬ˮ¡£ÏÂÁÐÈÈ»¯Ñ§·½³Ìʽ»òÃèÊöÖÐÕýÈ·µÄÊÇ A. 2CO(g) +O2(g)£½2CO2(g)£»¡÷H = £«282.8 kJ/mol B. 2H2(g) + O2(g)£½2H2O(g)£»¡÷H = £571.6 kJ/mol C. C(ʯs) +
1O2(g)£½CO(g)£»¡÷H = £110.7 kJ/mol 2D. ȼÉÕǰ»ìºÏÆøÌåÖÐH2µÄÌå»ý°Ù·ÖÊýΪ50£¥
16. ¼üÄÜÊÇÖ¸²ð¿ª1 mol¹²¼Û¼üËùÐèÒªµÄÄÜÁ¿¡£ÒÑÖªH£H¼ü¼üÄÜΪ436 kJ/mol£¬H£N¼ü¼üÄÜ
Ϊ391 kJ/mol£¬¸ù¾Ý»¯Ñ§·½³Ìʽ£ºN2(g)+3H2(g)£½2NH3(g)£»¡÷H£½£92.4 kJ/mol£¬ÔòN¡ÔN ¼üµÄ¼üÄÜÊÇ
A. 431 kJ/mol B. 946 kJ/mol C. 649 kJ/mol D. 869 kJ/mol 17. ¼×´¼ÖÊ×Ó½»»»Ä¤È¼ÁÏµç³ØÖн«¼×´¼ÕôÆø×ª»¯ÎªÇâÆøµÄÁ½ÖÖ·´Ó¦ÔÀíÊÇ ¢ÙCH3OH(g)£«H2O(g)£½CO2(g)£«3H2(g)£»¡÷H£½+ 49.0 kJ/mol ¢ÚCH3OH(g)£«
1O2(g)£½CO2(g)£«2H2(g)£»¡÷H£½£192.9 kJ/mol¡£ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ 2A. CH3OHµÄȼÉÕÈÈΪ192.9 kJ/mol B. ·´Ó¦¢ÙÖеÄÄÜÁ¿±ä»¯ÈçÓÒͼËùʾ C. CH3OHת±äΪH2µÄ¹ý³ÌÒ»¶¨ÒªÎüÊÕÈÈÁ¿