ÌâÄ¿ÄÚÈÝ
ijʵÑéС×éÓÃ0.50mol/L NaOHÈÜÒººÍ0.50mol/LÁòËáÈÜÒº½øÐÐÖкÍÈȵIJⶨ¡£
¢ñ£®ÅäÖÆ0.50mol/L NaOHÈÜÒº
£¨1£©ÈôʵÑéÖдóԼҪʹÓÃ245 mL NaOHÈÜÒº£¬ÖÁÉÙÐèÒª³ÆÁ¿NaOH¹ÌÌå g¡£
£¨2£©¼òÊö³ÆÁ¿NaOH¹ÌÌåµÄ²Ù×÷¹ý³Ì£º
¢ò£®²â¶¨Ï¡ÁòËáºÍÏ¡ÇâÑõ»¯ÄÆÖкÍÈȵÄʵÑé×°ÖÃÈçͼËùʾ¡£
£¨1£©Ð´³ö¸Ã·´Ó¦µÄÈÈ»¯Ñ§·½³Ìʽ£¨ÖкÍÈÈΪ57.3 kJ/mol£©£º
£¨2£©È¡50 mL NaOHÈÜÒººÍ30 mLÁòËáÈÜÒº½øÐÐʵÑ飬ʵÑéÊý¾ÝÈçÏÂ±í¡£
¢ÙÇëÌîдϱíÖеĿհףº
ÎÂ¶È ÊµÑé´ÎÊý | ÆðʼζÈt1/¡æ | ÖÕÖ¹ÎÂ¶È t2/¡æ[À´Ô´:ѧ¿ÆÍøZXXK] | ζȲîƽ¾ùÖµ £¨t2-t1£©/¡æ | ||
H2SO4 | NaOH | ƽ¾ùÖµ | |||
1 | 26.2 | 26.0 | 26.1 | 30.1 | |
2 | 27.0 | 27.4 | 27.2 | 33.3 | |
3 | 25.9 | 25.9 | 25.9 | 29.8 | |
4 | 26.4 | 26.2 | 26.3 | 30.4 |
¢ÛÉÏÊöʵÑéÊýÖµ½á¹ûÓë57.3 kJ/molÓÐÆ«²î£¬²úÉúÆ«²îµÄÔÒò¿ÉÄÜÊÇ£¨Ìî×Öĸ£© ¡£
a£®ÊµÑé×°Öñ£Î¡¢¸ôÈÈЧ¹û²î
b£®Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý
c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÁòËáµÄСÉÕ±ÖÐ
d£®ÓÃζȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²â¶¨H2SO4ÈÜÒºµÄζÈ
¢ñ¡¢£¨1£©5.0 £¨2·Ö£©
£¨2£©£¨3·Ö£©¢ÙÈ¡Ò»½à¾»¸ÉÔïСÉÕ±³ÆÁ¿Îªag
¢ÚÏòÌìƽÓÒÅÌÌí¼ÓíÀÂë²¢Òƶ¯ÓÎÂ룬ʹíÀÂë¡¢ÓÎÂë¶ÁÊýΪ(a+5)g
¢ÛÓÃÒ©³×Ïò×óÅÌÉÕ±Öлº»º¼ÓÈëNaOH£¬ÖÁÌìƽǡºÃƽºâ¼´¿É¡£
£¨Èô¢ÙËã´íÁË£¬µ«²Ù×÷ÕýÈ·£¬²»Ó°ÏìµÃ·Ö£©
¢ò¡¢£¨1£© (3·Ö)
£¨ÏµÊýÀ©´óÏàÓ¦µÄ¡÷HÒ²À©´ó,ͬÑù¸ø·Ö£¬Ã»×¢Ã÷¡°aq¡±²»¸ø·Ö£©
£¨2£©¢Ù 4.0£¨Ð´¡°4¡±²»¸ø·Ö£©£¨2·Ö£©
¢Ú -53.5 kJ/mol £¨Ã»¡°-¡±ºÅ»òûµ¥Î»¾ù²»¸ø·Ö£©£¨2·Ö£©
¢Û a c d (Ñ¡¶ÔÒ»¸ö¸ø1·Ö)£¨3·Ö£©
½âÎö
ijʵÑéС×éÓÃ0.50 mol/L NaOHÈÜÒººÍ0.50 mol/LÁòËáÈÜÒº½øÐÐÖкÍÈȵIJⶨ¡£
¢ñ£®ÅäÖÆ0.50 mol/L NaOHÈÜÒº
£¨1£©ÈôʵÑéÖдóԼҪʹÓÃ245 mL NaOHÈÜÒº£¬ÖÁÉÙÐèÒª³ÆÁ¿NaOH¹ÌÌå g¡£
£¨2£©´Óͼ1ÖÐÑ¡Ôñ³ÆÁ¿NaOH¹ÌÌåËùÐèÒªµÄÒÇÆ÷ÊÇ£¨Ìî×Öĸ£©£º ¡£
¢ò£®²â¶¨Ï¡ÁòËáºÍÏ¡ÇâÑõ»¯ÄÆÖкÍÈȵÄʵÑé×°ÖÃÈçͼ2Ëùʾ¡£
£¨3£©Ð´³ö¸Ã·´Ó¦µÄÈÈ»¯Ñ§·½³Ìʽ£¨ÖкÍÈÈΪ57.3 kJ/mol£©£»
£¨4£©È¡50 mL NaOHÈÜÒººÍ30 mLÁòËáÈÜÒº½øÐÐʵÑ飬ʵÑéÊý¾ÝÈçÏÂ±í¡£
¢ÙÇëÌîдϱíÖеĿհףº
ÎÂ¶È ÊµÑé´ÎÊý | ÆðʼζÈt1/¡æ | ÖÕÖ¹ÎÂ¶È t2/¡æ | ζȲîƽ¾ùÖµ £¨t2-t1£©/¡æ | ||
H2SO4 | NaOH | ƽ¾ùÖµ | |||
1 | 26.2 | 26.0 | 26.1 | 30.1 | |
2 | 27.0 | 27.4 | 27.2 | 33.3 | |
3 | 25.9 | 25.9 | 25.9 | 29.8 | |
4 | 26.4 | 26.2 | 26.3 | 30.4 |
¢Ú½üËÆÈÏΪ0.50 mol/L NaOHÈÜÒººÍ0.50 mol/LÁòËáÈÜÒºµÄÃܶȶ¼ÊÇ1 g/cm3£¬ÖкͺóÉú³ÉÈÜÒºµÄ±ÈÈÈÈÝc=4.18 J/(g¡¤¡æ)¡£ÔòÖкÍÈÈ¡÷H= £¨È¡Ð¡Êýµãºóһ룩¡£
¢ÛÉÏÊöʵÑéÊýÖµ½á¹ûÓë57.3 kJ/molÓÐÆ«²î£¬²úÉúÆ«²îµÄÔÒò¿ÉÄÜÊÇ£¨Ìî×Öĸ£© ¡£
a£®ÊµÑé×°Öñ£Î¡¢¸ôÈÈЧ¹û²î
b£®Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý
c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÁòËáµÄСÉÕ±ÖÐ
d£®ÓÃζȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²â¶¨H2SO4ÈÜÒºµÄζÈ
ijʵÑéС×éÓÃ0.50 mol/L NaOHÈÜÒººÍ0.50 mol/L H2SO4ÈÜÒº½øÐÐÖкÍÈȵIJⶨ¡£
¢ñ.ÅäÖÆ0.50 mol/L NaOHÈÜÒº
£¨1£©ÈôʵÑéÖдóԼҪʹÓÃ245 mL NaOHÈÜÒº£¬ÔòÖÁÉÙÐèÒª³ÆÁ¿NaOH¹ÌÌå g¡£
£¨2£©´ÓÏÂͼÖÐÑ¡Ôñ³ÆÁ¿NaOH¹ÌÌåËùÐèÒªµÄÒÇÆ÷(ÌîÐòºÅ) ¡£
Ãû³Æ |
ÍÐÅÌÌìƽ(´øíÀÂë) |
СÉÕ± |
ÛáÛöǯ |
²£Á§°ô |
Ò©³× |
Á¿Í² |
ÒÇÆ÷ |
||||||
ÐòºÅ |
a |
b |
c |
d |
e |
f |
¢ò.²â¶¨ÖкÍÈȵÄʵÑé×°ÖÃÈçͼËùʾ
£¨1£©Ð´³öÏ¡ÁòËáºÍÏ¡ÇâÑõ»¯ÄÆÈÜÒº·´Ó¦±íʾÖкÍÈȵÄÈÈ»¯Ñ§·½³Ìʽ(ÖкÍÈÈÊýֵΪ57.3 kJ¡¤mol£1)£º_______________________________________¡£
£¨2£©È¡50 mL NaOHÈÜÒººÍ30 mLÁòËá½øÐÐʵÑ飬ʵÑéÊý¾ÝÈçÏÂ±í¡£
¢ÙÇëÌîдϱíÖеĿհףº
ÎÂ¶È ÊµÑé´ÎÊý |
³¬Ê¼Î¶Èt1/¡æ |
ÖÕֹζÈt2/¡æ |
ƽ¾ùζȲî (t2£t1)/¡æ |
||
H2SO4 |
NaOH |
ƽ¾ùÖµ |
|||
1 |
26.2 |
26.0 |
26.1 |
30.1 |
|
2 |
27.0 |
27.4 |
27.2 |
33.3 |
|
3 |
25.9 |
25.9 |
25.9 |
29.8 |
|
4 |
26.4 |
26.2 |
26.3 |
30.4 |
¢Ú¸ù¾ÝÉÏÊöʵÑéÊý¾Ý¼ÆËã³öµÄÖкÍÈÈΪ53.5 kJ/mol£¬ÕâÓëÖкÍÈȵÄÀíÂÛÖµ57.3 kJ/molÓÐÆ«²î£¬²úÉúÆ«²îµÄÔÒò¿ÉÄÜÊÇ(Ìî×Öĸ)______¡£
a£®ÊµÑé×°Öñ£Î¡¢¸ôÈÈЧ¹û²î
b£®ÔÚÁ¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý
c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÏ¡ÁòËáµÄСÉÕ±ÖÐ
d£®ÓÃζȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²â¶¨H2SO4ÈÜÒºµÄζÈ
ijʵÑéС×éÓÃ0.50 mol¡¤L-1 NaOHÈÜÒººÍ0.50 mol¡¤L-1ÁòËáÈÜÒº½øÐÐÖкÍÈȵIJⶨ¡£
¢ñ£®ÅäÖÆ0.50 mol¡¤L-1 NaOHÈÜÒº
£¨1£©ÈôʵÑéÖдóԼҪʹÓÃ245 mL NaOHÈÜÒº£¬ÖÁÉÙÐèÒª³ÆÁ¿NaOH¹ÌÌå¡¡¡¡ ¡¡g¡£
£¨2£©´ÓÏÂͼÖÐÑ¡Ôñ³ÆÁ¿NaOH¹ÌÌåËùÐèÒªµÄÒÇÆ÷ÊÇ£¨Ìî×Öĸ£©£º¡¡ ¡¡¡¡¡£
Ãû³Æ |
ÍÐÅÌÌìƽ (´øíÀÂë) |
СÉÕ± |
ÛáÛöǯ |
²£Á§°ô |
Ò©³× |
Á¿Í² |
ÒÇÆ÷ |
||||||
ÐòºÅ |
a |
b |
c |
d |
e |
f |
¢ò£®²â¶¨Ï¡ÁòËáºÍÏ¡ÇâÑõ»¯ÄÆÖкÍÈȵÄʵÑé×°ÖÃÈçͼËùʾ¡£
£¨1£©Ð´³ö¸Ã·´Ó¦ÖкÍÈȵÄÈÈ»¯Ñ§·½³Ìʽ£º£¨ÖкÍÈÈΪ57.3 kJ¡¤mol-1£© ¡¡¡¡ ¡¡¡¡ ¡¡¡¡ ¡¡¡¡ ¡£
£¨2£©È¡50 mL NaOHÈÜÒººÍ30 mLÁòËáÈÜÒº½øÐÐʵÑ飬ʵÑéÊý¾ÝÈçÏÂ±í¡£
ÎÂ¶È ÊµÑé´ÎÊý¡¡ |
ÆðʼζÈt1/¡æ |
ÖÕֹζÈt2/¡æ |
ζȲî ƽ¾ùÖµ (t2-t1)/¡æ |
||
H2SO4 |
NaOH |
ƽ¾ùÖµ |
|||
1 |
26.2 |
26.0 |
26.1 |
29.6 |
|
2 |
27.0 |
27.4 |
27.2 |
31.2 |
|
3 |
25.9 |
25.9 |
25.9 |
29.8 |
|
4 |
26.4 |
26.2 |
26.3 |
30.4 |
|
¢ÙÉϱíÖеÄζȲîƽ¾ùֵΪ¡¡ ¡æ
¢Ú½üËÆÈÏΪ0.50 mol¡¤L-1 NaOHÈÜÒººÍ0.50 mol¡¤L-1ÁòËáÈÜÒºµÄÃܶȶ¼ÊÇ1 g¡¤cm-3£¬ÖкͺóÉú³ÉÈÜÒºµÄ±ÈÈÈÈÝc=4.18 J¡¤(g¡¤¡æ)-1¡£ÔòÖкÍÈȦ¤H=¡¡¡¡¡¡ £¨È¡Ð¡Êýµãºóһ룩¡£
¢ÛÉÏÊöʵÑéÊýÖµ½á¹ûÓë57.3 kJ¡¤mol-1ÓÐÆ«²î£¬²úÉúÆ«²îµÄÔÒò¿ÉÄÜÊÇ£¨Ìî×Öĸ£©¡¡¡¡¡¡¡¡¡£
a£®ÊµÑé×°Öñ£Î¡¢¸ôÈÈЧ¹û²î
b£®Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý
c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÁòËáµÄСÉÕ±ÖÐ
d£®ÓÃζȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²â¶¨H2SO4ÈÜÒºµÄζÈ