Ç¿ËáºÍÇ¿¼îÏ¡ÈÜÒºµÄÖкÍÈȿɱíʾΪ£ºH+(aq)£«OH£­(aq)£½H2O(l)£¬¡÷H£½¨C57.3 kJ¡¤mol£­1ÒÑÖª£ºCH3COOH(aq)£«NaOH(aq)£½CH3COONa(aq)£«H2O(l)£»¡÷H1£¬1/2H2SO4(aq)£«NaOH(aq)£½1/2Na2SO4(aq)£«H2O(l)£»¡÷H2HNO3(aq)£«KOH(aq)£½KNO3(aq)£«H2O(l)£»¡÷H3ÉÏÊö·´Ó¦¾ùΪÔÚÈÜÒºÖеķ´Ó¦£¬Ôò¡÷H1¡¢¡÷H2¡¢¡÷H3µÄ¹ØϵÕýÈ·µÄÊÇ

[¡¡¡¡]

A£®

¡÷H1£½¡÷H2£½¡÷H3

B£®

¡÷H2£¼¡÷H1£¼¡÷H3

C£®

¡÷H2£¼¡÷H3£¼¡÷H1

D£®

¡÷H2£½¡÷H3£¼¡÷H1

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2013½ì°²»ÕÊæ³ÇÏþÌìÖÐѧ¸ßÈýÉÏѧÆÚÖصã°à°ëÔ¿¼»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

Ç¿ËáºÍÇ¿¼îÏ¡ÈÜÒºµÄÖкÍÈȿɱíʾΪ£ºH+£¨aq£©+OH£­(aq)=H2O£¨l£©£¬¡÷H=¨C57.3kJ¡¤mol-1ÒÑÖª£ºCH3COOH(aq)+NaOH(aq)£½CH3COONa(aq)+H2O£¨l£©£»¡÷H1  

1/2H2SO4£¨aq£©+NaOH£¨aq£©£½1/2Na2SO4(aq)+H2O(l)£»¡÷H2

HNO3(aq)+KOH(aq)£½KNO3(aq)+H2O(l)£»¡÷H3

ÉÏÊö·´Ó¦¾ùΪÔÚÈÜÒºÖеķ´Ó¦£¬Ôò¡÷H1¡¢¡÷H2¡¢¡÷H3µÄ¹ØϵÕýÈ·µÄÊÇ

A£®¡÷H1£½¡÷H2£½¡÷H3    B£®¡÷H2£¼¡÷H1£¼¡÷H3   

C£®¡÷H2£¼¡÷H3£¼¡÷H1    D£®¡÷H2£½¡÷H3£¼¡÷H1

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£ºÍ¬²½Ìâ ÌâÐÍ£ºµ¥Ñ¡Ìâ

Ç¿ËáºÍÇ¿¼îÏ¡ÈÜÒºµÄÖкÍÈȿɱíʾΪ£º H+(aq)+OH-(aq)=H2O(l) ¡÷H=-57.3 kJ¡¤mol-1 ÒÑÖª£º
CH3COOH( aq)+NaOH( aq) =CH3 COONa(aq)+ H2O(l) ¡÷H1
H2SO4(Ũ)+NaOH(aq)=Na2SO4(aq)+H2O(l) ¡÷H2
HNO3( aq)+ KOH( aq)=KNO3(aq)+ H2O(l) ¡÷H3
ÉÏÊö·´Ó¦¾ùΪÔÚÈÜÒºÖеķ´Ó¦£¬Ôò¡÷H1¡¢¡÷H2¡¢¡÷H3µÄ¹ØϵÕýÈ·µÄÊÇ
[     ]
A.¡÷H1=¡÷H2=¡÷H3
B.¡÷H2>¡÷H3>¡÷H1
C.¡÷H2<¡÷H3< ¡÷H1
D.¡÷H2=¡÷H3<¡÷H1

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

Ç¿ËáºÍÇ¿¼îÏ¡ÈÜÒºµÄÖкÍÈȿɱíʾΪ£ºH+£¨aq£©+OH£­(aq)=H2O£¨l£©£¬¡÷H=¨C57.3kJ¡¤mol-1  

ÒÑÖª£ºCH3COOH(aq)+NaOH(aq)£½CH3COONa(aq)+H2O£¨l£©£»¡÷H1   , 1/2H2SO4£¨aq£©+NaOH£¨aq£©£½1/2Na2SO4(aq)+H2O(l)£»¡÷H2    HNO3(aq)+KOH(aq)£½KNO3(aq)+H2O(l)£»¡÷H3    

ÉÏÊö·´Ó¦¾ùΪÔÚÈÜÒºÖеķ´Ó¦£¬Ôò¡÷H1¡¢¡÷H2¡¢¡÷H3µÄ¹ØϵÕýÈ·µÄÊÇ        (     ) 

A£®¡÷H1£½¡÷H2£½¡÷H3

B£®¡÷H2£¼¡÷H1£¼¡÷H3

C£®¡÷H2£¼¡÷H3£¼¡÷H1

D£®¡÷H2£½¡÷H3£¼¡÷H1

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2012-2013Äê°²»ÕÊæ³ÇÏþÌìÖÐѧ¸ßÈýÉÏѧÆÚÖصã°à°ëÔ¿¼»¯Ñ§ÊÔ¾í£¨´ø½âÎö£© ÌâÐÍ£ºµ¥Ñ¡Ìâ

Ç¿ËáºÍÇ¿¼îÏ¡ÈÜÒºµÄÖкÍÈȿɱíʾΪ£ºH+£¨aq£©+OH£­(aq)=H2O£¨l£©£¬¡÷H=¨C57.3kJ¡¤mol-1ÒÑÖª£ºCH3COOH(aq)+NaOH(aq)£½CH3COONa(aq)+H2O£¨l£©£»¡÷H1  
1/2H2SO4£¨aq£©+NaOH£¨aq£©£½1/2Na2SO4(aq)+H2O(l)£»¡÷H2
HNO3(aq)+KOH(aq)£½KNO3(aq)+H2O(l)£»¡÷H3
ÉÏÊö·´Ó¦¾ùΪÔÚÈÜÒºÖеķ´Ó¦£¬Ôò¡÷H1¡¢¡÷H2¡¢¡÷H3µÄ¹ØϵÕýÈ·µÄÊÇ

A£®¡÷H1£½¡÷H2£½¡÷H3B£®¡÷H2£¼¡÷H1£¼¡÷H3
C£®¡÷H2£¼¡÷H3£¼¡÷H1D£®¡÷H2£½¡÷H3£¼¡÷H1

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸