ʵÑéÐòºÅ | ÆðʼζÈt1/¡æ | ÖÕֹζÈ/t2/¡æ | βt2-t1£©/¡æ |
1 | 25.0 | 32.6 | |
2 | 25.1 | 31.8 | |
3 | 25.1 | 31.9 |
·ÖÎö £¨1£©¸ù¾ÝÁ¿ÈȼƵĹ¹ÔìÀ´ÅжϸÃ×°ÖõĴóСÉÕ±¼äÌîÂúËéÅÝÄËÜÁϵÄ×÷Óã»
£¨2£©ÖкÍÈȲⶨʵÑé³É°ÜµÄ¹Ø¼üÊDZ£Î¹¤×÷£»
£¨3£©²»¸ÇÓ²Ö½°å£¬»áÓÐÒ»²¿·ÖÈÈÁ¿É¢Ê§£»
£¨4£©·´Ó¦·Å³öµÄÈÈÁ¿ºÍËùÓÃËáÒÔ¼°¼îµÄÁ¿µÄ¶àÉÙÓйأ¬²¢¸ù¾ÝÖкÍÈȵĸÅÄîºÍʵÖÊÀ´»Ø´ð£»
£¨5£©ÇâÑõ»¯±µÓëÁòËá·´Ó¦Éú³ÉÁËÁòËá±µ³Áµí£¬Éú³É³ÁµíµÄ¹ý³ÌÖлáÓÐÈÈÁ¿±ä»¯£»
£¨6£©ÏÈÅжÏÈý´Î·´Ó¦Î¶ȲîµÄÓÐЧÐÔ£¬È»ºóÇó³öƽ¾ùÖµ£¬¸ù¾Ý¹«Ê½Q=cm¡÷TÀ´Çó³öÉú³É0.05molµÄË®·Å³öÈÈÁ¿£¬×îºó¸ù¾ÝÖкÍÈȵĸÅÄîÇó³öÖкÍÈÈ£»
£¨7£©a£®ÊµÑé×°Öñ£Î¡¢¸ôÈÈЧ¹û²î£¬ÈÈÁ¿É¢Ê§½Ï´ó£»
b£®Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý£¬»áµ¼ÖÂËùÁ¿µÄÇâÑõ»¯ÄÆÌå»ýÆ«´ó£»
c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÑÎËáµÄСÉÕ±ÖУ¬ÈÈÁ¿É¢Ê§½Ï´ó£»
d£®ÓÃζȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²â¶¨HClÈÜÒºµÄζȣ¬HClÈÜÒºµÄÆðʼζÈÆ«¸ß£®
½â´ð ½â£º£¨1£©¸ù¾ÝÁ¿ÈȼƵĹ¹ÔìºÍʵÑéµÄ³É°Ü¹Ø¼üÀ´ÅжϸÃ×°ÖõĴóСÉÕ±¼äÌîÂúËéÅÝÄËÜÁϵÄ×÷ÓÃÊDZ£Î¡¢¸ôÈÈ£¬¼õÉÙÈÈÁ¿É¢Ê§£»
¹Ê´ð°¸Îª£º±£Î¡¢¸ôÈÈ£¬¼õÉÙÈÈÁ¿É¢Ê§£»
£¨2£©ÖкÍÈȲⶨʵÑé³É°ÜµÄ¹Ø¼üÊDZ£Î¹¤×÷£¬½ðÊô͵ĵ¼ÈÈЧ¹ûºÃÓÚ»·Ðβ£Á§½Á°è°ô£»
¹Ê´ð°¸Îª£º²»ÄÜ£»½ðÊôµ¼ÈÈ£¬µ¼ÖÂÈÈÁ¿É¢Ê§£»
£¨3£©´óÉÕ±ÉÏÈç²»¸ÇÓ²Ö½°å£¬»áÓÐÒ»²¿·ÖÈÈÁ¿É¢Ê§£¬ÇóµÃµÄÖкÍÈÈÊýÖµ½«»á¼õС£»
¹Ê´ð°¸Îª£ºÆ«µÍ£»
£¨4£©·´Ó¦·Å³öµÄÈÈÁ¿ºÍËùÓÃËáÒÔ¼°¼îµÄÁ¿µÄ¶àÉÙÓйأ¬50mL 1.0mol•L-1ÑÎËá¸ú50mL 1.1mol•L-1ÇâÑõ»¯ÄÆÈÜÒº½øÐз´Ó¦£¬Éú³ÉË®µÄÁ¿Îª0.050mol£¬¸ÄÓÃ60mL 1.0mol•L-1ÑÎËá¸ú50mL 1.1mol•L-1ÇâÑõ»¯ÄÆÈÜÒº½øÐз´Ó¦£¬Éú³É0.055molH2O£¬Éú³ÉË®µÄÁ¿Ôö¶à£¬Ëù·Å³öµÄÈÈÁ¿Æ«¸ß£¬µ«ÊÇÖкÍÈȵľùÊÇÇ¿ËáºÍÇ¿¼î·´Ó¦Éú³É1molˮʱ·Å³öµÄÈÈ£¬ÓëËá¼îµÄÓÃÁ¿Î޹أ»
¹Ê´ð°¸Îª£ºÔö¼Ó£»ºóÕßÉú³É0.055molH2O£¬¶øÇ°ÕßÖ»ÄÜÉú³É0.050molH2O£»²»±ä£»ÖкÍÈÈÊÇÖ¸Ëá¸ú¼î·¢ÉúÖкͷ´Ó¦Éú³É1molH2OʱËù·Å³öµÄÈÈÁ¿£¬ÓëËá¼îµÄÓÃÁ¿Î޹أ»
£¨5£©ÁòËáÓëBa£¨OH£©2ÈÜÒº·´Ó¦³ýÁËÉú³ÉË®Í⣬»¹Éú³ÉÁËBaSO4³Áµí£¬¸Ã·´Ó¦ÖеÄÉú³ÉÈÈ»áÓ°Ïì·´Ó¦µÄ·´Ó¦ÈÈ£¬ËùÒÔ²»ÄÜÓÃBa£¨OH£©2ÈÜÒººÍÁòËá´úÌæNaOHÈÜÒººÍÑÎËá²âÖкÍÈÈ£®
¹Ê´ð°¸Îª£º²»ÄÜ£»ÒòΪÁòËáÓëBa£¨OH£©2ÈÜÒº·´Ó¦Éú³ÉBaSO4³ÁµíµÄÉú³ÉÈÈ»áÓ°Ïì·´Ó¦µÄ·´Ó¦ÈÈ£»
£¨6£©3´Î·´Ó¦Ç°ºóζȲî·Ö±ðΪ£º7.6¡æ¡¢6.7¡æ¡¢6.8¡æ£¬µÚÒ»×éÉáÈ¥£¬Æ½¾ùֵΪ6.75¡æ£¬50mL1.0mol/LÑÎËá¸ú50mL1.1mol/LÇâÑõ»¯ÄÆÈÜÒºµÄÖÊÁ¿ºÍm=100mL¡Á1g/mL=100g£¬c=4.18J/£¨g•¡æ£©£¬´úÈ빫ʽQ=cm¡÷TµÃÉú³É0.05molµÄË®·Å³öÈÈÁ¿Q=4.184J/£¨g•¡æ£©¡Á100g¡Á6.75¡æ=2.8224kJ£¬¼´Éú³É0.05molµÄË®·Å³öÈÈÁ¿2.8224kJ£¬ËùÒÔÉú³É1molµÄË®·Å³öÈÈÁ¿Îª2.8224kJ¡Á20=56.5kJ£¬¼´¸ÃʵÑé²âµÃµÄÖкÍÈÈ¡÷H=-56.5kJ/mol£»
¹Ê´ð°¸Îª£º-56.5kJ/mol£»
£¨7£©a£®×°Öñ£Î¡¢¸ôÈÈЧ¹û²î£¬²âµÃµÄÈÈÁ¿Æ«Ð¡£¬ÖкÍÈȵÄÊýֵƫС£¬¹ÊaÕýÈ·£»
b£®Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý£¬»áµ¼ÖÂËùÁ¿µÄÇâÑõ»¯ÄÆÌå»ýÆ«´ó£¬·Å³öµÄÈÈÁ¿Æ«¸ß£¬ÖкÍÈȵÄÊýֵƫ´ó£¬¹Êb´íÎó£»
c£®¾¡Á¿Ò»´Î¿ìËÙ½«NaOHÈÜÒºµ¹ÈëÊ¢ÓÐÑÎËáµÄСÉÕ±ÖУ¬²»ÔÊÐí·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÑÎËáµÄСÉÕ±ÖУ¬¹ÊcÕýÈ·£»
d£®ÓÃζȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²â¶¨HClÈÜÒºµÄζȣ¬HClÈÜÒºµÄÆðʼζÈÆ«¸ß£¬²âµÃµÄÈÈÁ¿Æ«Ð¡£¬ÖкÍÈȵÄÊýֵƫС£¬¹ÊdÕýÈ·£®
¹Ê´ð°¸Îª£ºacd£®
µãÆÀ ±¾Ì⿼²éÖкÍÈȲⶨÔÀí¼°·´Ó¦ÈȵļÆË㣬ÌâÄ¿ÄѶȴó£¬×¢ÒâÀí½âÖкÍÈȵĸÅÄîÒÔ¼°²â¶¨·´Ó¦ÈȵÄÎó²îµÈÎÊÌ⣮
Ä꼶 | ¸ßÖÐ¿Î³Ì | Ä꼶 | ³õÖÐ¿Î³Ì |
¸ßÒ» | ¸ßÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ | ³õÒ» | ³õÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ |
¸ß¶þ | ¸ß¶þÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õ¶þ | ³õ¶þÃâ·Ñ¿Î³ÌÍƼö£¡ |
¸ßÈý | ¸ßÈýÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õÈý | ³õÈýÃâ·Ñ¿Î³ÌÍƼö£¡ |
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ÈÕ³£Éú»îÖÐʹÓõÄÓ²±Ò¶¼ÊÇ´¿½ð¡¢°×Òø´òÔìµÄ | |
B£® | ËÜ»¯¼Á¶ÔÈËÌåÓк¦£¬²»¿ÉÓÃÓÚʳƷÌí¼Ó¼Á | |
C£® | SO2¿ÉÓÃÓÚƯ°×Ö½ÕÅ£¬Òà¿ÉƯ°×ÈÕ³£Éú»îÖÐʳµÄÂøÍ· | |
D£® | ¡°Ò©¶¾Èý·Ö¡±ÆäʵÊÇûÓпÆѧÒÀ¾ÝµÄ£¬Ö»ÒªÓÐЧ³¬¼ÁÀïÒ²ÎÞËùν |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | µÈÌå»ý¡¢µÈÎïÖʵÄÁ¿Å¨¶ÈµÄNa2SO3ÈÜÒºÓëNaHSO3ÈÜÒº»ìºÏºóÈÜÒº³ÊËáÐÔ£¬Ôò£ºc£¨HSO3-£©£¾c£¨SO32-£© | |
B£® | 0.1mol•L-1µÄCH3COONaÈÜÒº20mLÓë0.1mol•L-1µÄÏ¡ÑÎËá10mL»ìºÏºóÈÜÒºÏÔËáÐÔ£ºc£¨CH3COO-£©£¾c £¨Cl-£©£¾c£¨H+£©£¾c£¨CH3COOH£© | |
C£® | c£¨NH4+£©Å¨¶ÈÏàͬµÄNH4Cl¡¢£¨NH4£©2SO4¡¢£¨NH4£©2CO3ÈÜÒºÖУ¬ÈÜÖʵÄÎïÖʵÄÁ¿Å¨¶È£ºc[£¨NH4£©2SO4]£¾c[£¨NH4£©2CO3]£¾c£¨NH4Cl£© | |
D£® | 0.1mol•L-1NaNO3ÈÜÒºÓë0.1mol•L-1CH3COOHÈÜÒºÒÔÈÎÒâ±ÈÀý»ìºÏ£ºc£¨H+£©=c£¨OH-£©+c£¨CH3COO-£© |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º½â´ðÌâ
ÈÝ Æ÷ | ¼× | ÒÒ |
·´Ó¦ÎïͶÈëÁ¿ | 1molCO2¡¢3molH2 | a molCO2¡¢b molH2¡¢c molCH3OH£¨g£©¡¢c molH2O£¨g£© |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÌî¿ÕÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ÌúÓëÏ¡ÁòËá·´Ó¦ | B£® | ¼ÓÈÈÑõ»¯ÒøÒ±Á¶Òø | ||
C£® | ´×ËáÓ백ˮ·´Ó¦ | D£® | ¹ÜµÀúÆøȼÉÕ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | 17.9mol•L-1¡¡34.7% | B£® | 20.4mol•L-1¡¡33.8% | ||
C£® | 17.9mol•L-1¡¡33.8% | D£® | 20.4mol•L-1¡¡34.7% |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ¢Ù¢Ü | B£® | ¢Ú¢Û | C£® | ¢Ù¢Ý | D£® | ¢Ú¢Ý |
²é¿´´ð°¸ºÍ½âÎö>>
°Ù¶ÈÖÂÐÅ - Á·Ï°²áÁбí - ÊÔÌâÁбí
ºþ±±Ê¡»¥ÁªÍøÎ¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨Æ½Ì¨ | ÍøÉÏÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | µçÐÅթƾٱ¨×¨Çø | ÉæÀúÊ·ÐéÎÞÖ÷ÒåÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | ÉæÆóÇÖȨ¾Ù±¨×¨Çø
Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com