ÌâÄ¿ÄÚÈÝ
13£®ÒÀ¾ÝÊÂʵ£¬Ð´³öÏÂÁз´Ó¦µÄÈÈ»¯Ñ§·½³Ìʽ£º£¨1£©ÔÚ25¡æ¡¢101kPaÏ£¬1g¼×´¼£¨ÒºÌ¬£©È¼ÉÕÉú³ÉCO2ºÍҺ̬ˮʱ·ÅÈÈ22.68kJ£®Ôò±íʾ¼×´¼È¼ÉÕÈÈ»¯Ñ§·½³ÌʽΪ£ºCH3OH£¨l£©+$\frac{3}{2}$O2£¨g£©=CO2£¨g£©+2H2O£¨l£©¡÷H=-725.76 kJ/mol£»
£¨2£©ÈôÊÊÁ¿µÄN2ºÍO2ÍêÈ«·´Ó¦£¬Ã¿Éú³É23¿ËNO2ÐèÒªÎüÊÕ16.95kJÈÈÁ¿£®ÔòÆäÈÈ»¯Ñ§·½³ÌʽΪ£ºN2£¨g£©+2O2£¨g£©=2NO2£¨g£©¡÷H=+67.8 kJ/mol£»
£¨3£©ÔÚC2H2£¨Æø̬£©ÍêȫȼÉÕÉú³ÉCO2ºÍҺ̬ˮµÄ·´Ó¦ÖУ¬ÈôÉú³É1molË®¾Í·Å³ö650kJµÄÈÈÁ¿£¬ÔòÆäÈÈ»¯Ñ§·½³ÌʽΪ£ºC2H2£¨g£©+$\frac{5}{2}$ O2£¨g£©=2CO2£¨g£©+H2O£¨l£©¡÷H=-650 kJ/mol£®
·ÖÎö £¨1£©ÒÀ¾ÝȼÉÕÈȸÅÄîÊÇ1mol¿ÉȼÎïÍêȫȼÉÕÉú³ÉÎȶ¨Ñõ»¯Îï·Å³öµÄÈÈÁ¿£¬Ìâ¸ÉËù¸øÁ¿¼ÆËã32g¼×´¼È¼ÉÕÉú³É¶þÑõ»¯Ì¼ºÍҺ̬ˮ·ÅÈÈ£¬½áºÏÈÈ»¯Ñ§·½³ÌʽÊéд·½·¨£¬±ê×¢ÎïÖʾۼ¯×´Ì¬ºÍ¶ÔÓ¦ìʱ䣻
£¨2£©ÊÊÁ¿µÄN2ºÍO2ÍêÈ«·´Ó¦£¬Ã¿Éú³É23¿ËNO2ÐèÒªÎüÊÕ16.95kJÈÈÁ¿£¬ËùÒÔÿÉú³É92¿ËNO2ÐèÒªÎüÊÕ67.8kJÈÈÁ¿£¬¾Ý´Ëд³öÈÈ»¯Ñ§·½³Ìʽ£»
£¨3£©ÔÚC2H2£¨Æø̬£©ÍêȫȼÉÕÉú³ÉCO2ºÍҺ̬ˮµÄ·´Ó¦ÖУ¬ÈôÉú³É1molË®¾Í·Å³ö650kJµÄÈÈÁ¿£¬¾Ý´Ëд³öÈÈ»¯Ñ§·½³Ìʽ£®
½â´ð ½â£º£¨1£©ÔÚ25¡æ¡¢101kPaÏ£¬1g¼×´¼£¨CH3OH£©È¼ÉÕÉú³ÉCO2ºÍҺ̬ˮʱ·ÅÈÈ22.68kJ£®32g¼×´¼È¼ÉÕÉú³É¶þÑõ»¯Ì¼ºÍҺ̬ˮ·Å³öÈÈÁ¿Îª725.76KJ£»Ôò±íʾ¼×´¼È¼ÉÕÈȵÄÈÈ»¯Ñ§·½³ÌʽΪ£ºCH3OH£¨l£©+$\frac{3}{2}$O2£¨g£©=CO2£¨g£©+2H2O£¨l£©¡÷H=-725.76kJ•mol-1£¬
¹Ê´ð°¸Îª£ºCH3OH£¨l£©+$\frac{3}{2}$O2£¨g£©=CO2£¨g£©+2H2O£¨l£©¡÷H=-725.76kJ•mol-1£»
£¨2£©ÊÊÁ¿µÄN2ºÍO2ÍêÈ«·´Ó¦£¬Ã¿Éú³É23¿ËNO2ÐèÒªÎüÊÕ16.95kJÈÈÁ¿£¬ËùÒÔÿÉú³É92¿ËNO2ÐèÒªÎüÊÕ67.8kJÈÈÁ¿£¬ÔòÈÈ»¯Ñ§·½³ÌʽΪ£ºN2£¨g£©+2O2£¨g£©=2NO2£¨g£©¡÷H=67.8kJ•mol-1£¬
¹Ê´ð°¸Îª£ºN2£¨g£©+2O2£¨g£©=2NO2£¨g£©¡÷H=67.8kJ•mol-1£»
£¨3£©ÔÚC2H2£¨Æø̬£©ÍêȫȼÉÕÉú³ÉCO2ºÍҺ̬ˮµÄ·´Ó¦ÖУ¬ÈôÉú³É1molË®¾Í·Å³ö650kJµÄÈÈÁ¿£¬ÔòÆäÈÈ»¯Ñ§·½³ÌʽΪ£ºC2H2£¨g£©+$\frac{5}{2}$O2£¨g£©=2CO2£¨g£©+H2O£¨l£©¡÷H=-650 kJ/mol£»
¹Ê´ð°¸Îª£ºC2H2£¨g£©+$\frac{5}{2}$ O2£¨g£©=2CO2£¨g£©+H2O£¨l£©¡÷H=-650 kJ/mol£®
µãÆÀ ±¾ÌâÖ÷Òª¿¼²éÁËÈÈ»¯Ñ§·½³ÌʽµÄÊéд£¬×¢Òâ°ÑÎÕÈÈ»¯Ñ§·½³ÌʽµÄÒâÒ壮
A£® | ·´Ó¦ËÙÂÊÓëI-Ũ¶ÈÓÐ¹Ø | B£® | IO-Ò²ÊǸ÷´Ó¦µÄ´ß»¯¼Á | ||
C£® | ¸Ã»¯Ñ§·´Ó¦ËÙÂÊÓÉ·´Ó¦¢Ú¾ö¶¨ | D£® | v£¨H2O2£©=v£¨H2O£©=v£¨O2£© |
A£® | NaOH¡¢Mg£¨OH£©2¡¢H3PO4¡¢H2SO4 | B£® | NaOH¡¢KOH¡¢H2SO4¡¢HClO4 | ||
C£® | Be£¨OH£©2¡¢Ca£¨OH£©2¡¢HBrO4¡¢HClO4 | D£® | Mg£¨OH£©2¡¢Ba£¨OH£©2¡¢H3PO4¡¢H2SO4 |
A£® | Cu2+¡¢Na+¡¢SO42-¡¢Cl- | B£® | Ca2+¡¢NH4+¡¢Cl-¡¢OH- | ||
C£® | Ba2+¡¢H+¡¢I-¡¢SO42- | D£® | Mg2+¡¢Na+¡¢NH4+¡¢NO3- |
A£® | SiO2ºÍCO2 | B£® | NaClºÍHCl | C£® | I2ºÍ½ð¸Õʯ | D£® | NH3ºÍH2O |
¢Ù¢Ú¢Û¢Ü
A£® | ¢Ù¢Û | B£® | ¢Ú¢Ü | C£® | ¢Ú¢Û | D£® | ¢Ù¢Ü |
A£® | ÐèÒª¼ÓÈȲÅÄÜ·¢ÉúµÄ·´Ó¦Ò»¶¨ÊÇÎüÈÈ·´Ó¦ | |
B£® | »¯Ñ§¼üµÄ¶ÏÁѺÍÐγÉÊÇ»¯Ñ§·´Ó¦ÖÐÄÜÁ¿±ä»¯µÄÖ÷ÒªÔÒò | |
C£® | »¯Ñ§·´Ó¦ÖеÄÄÜÁ¿±ä»¯Í¨³£±íÏÖΪÈÈÁ¿µÄ±ä»¯ | |
D£® | ·´Ó¦Îï×ÜÄÜÁ¿ºÍÉú³ÉÎï×ÜÄÜÁ¿µÄÏà¶Ô´óС¾ö¶¨ÁË·´Ó¦ÊǷųöÄÜÁ¿»¹ÊÇÎüÊÕÄÜÁ¿ |