ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿¢ñ£®ÄÉÃ×¼¶Cu2O¼ÈÊǺ½Ä¸½¢Í§µ×²¿µÄ·À¸¯Ê´Í¿ÁÏ£¬Ò²ÊÇÓÅÁ¼µÄ´ß»¯¼Á¡£

(1)ÒÑÖª£ºC£¨s£©+O2£¨g£©=CO£¨g£©¦¤H £½¨C110.4kJmol-1£¬

2Cu2O£¨s£©+O2£¨g£©£½ 4CuO£¨s£© ¦¤H £½¨C292kJmol-1£¬Ôò¹¤ÒµÉÏÓÃ̼·ÛÓëCuO·ÛÄ©»ìºÏÔÚÒ»¶¨Ìõ¼þÏ·´Ó¦ÖÆÈ¡Cu2O(s)£¬Í¬Ê±Éú³ÉCOÆøÌåµÄÈÈ»¯Ñ§·½³ÌʽΪ________¡£

(2)ÓÃÄÉÃ×¼¶Cu2O×÷´ß»¯¼Á¿ÉʵÏÖ¼×´¼ÍÑÇâÖÆÈ¡¼×È©£º

CH3OH(g)HCHO(g)+H2(g),¼×´¼µÄƽºâת»¯ÂÊËæζȱ仯ÇúÏßÈçÓÒͼËùʾ¡£

¢Ù¸Ã·´Ó¦µÄ¦¤H___0 £¨Ìî¡°>¡±»ò¡°<¡±£©£»600Kʱ£¬Yµã¼×´¼µÄv(Õý) ____v(Äæ)£¨Ìî¡°>¡±»ò¡°<¡±£©¡£

¢Ú´ÓYµãµ½Xµã¿É²ÉÈ¡µÄ´ëÊ©ÊÇ___________________________________¡£

¢ÛÔÚt1Kʱ£¬Ïò¹Ì¶¨Ìå»ýΪ2LµÄÃܱÕÈÝÆ÷ÖгäÈë1molCH3OH(g)£¬Î¶ȱ£³Ö²»±ä£¬9·ÖÖÓʱ´ïµ½Æ½ºâ,Ôò0¡«9minÄÚÓÃCH3OH(g)±íʾµÄ·´Ó¦ËÙÂÊv(CH3OH)£½_____________, ζÈΪt1ʱ£¬¸Ã·´Ó¦µÄƽºâ³£ÊýK£½____________¡£

¢ò.½ðÊôÍ­Òòµ¼µçÐÔÇ¿¶øÓ¦Óù㷺¡£

ÓÉ»ÆÍ­¿óÒ±Á¶µÃµ½µÄ´ÖÍ­¾­¹ýµç½â¾«Á¶²ÅÄܵõ½´¿Í­¡£µç½âʱ£¬´ÖÍ­×÷______¼«£¬Òõ¼«µÄµç¼«·´Ó¦Ê½Îª_______________¡£

¢ó.º¬Í­Àë×ӵĵķÏË®»áÔì³ÉÎÛȾ£¬Í¨³£½«Æäת»¯ÎªÁò»¯Í­³Áµí¶ø³ýÈ¥¡£

ÒÑÖª£ºKsp[CuS]=1¡Á10-36£¬ÒªÊ¹Í­Àë×ÓµÄŨ¶È·ûºÏÅŷűê×¼£¨²»³¬¹ý0.5mg/L£©£¬ÈÜÒºÖеÄÁòÀë×ÓµÄÎïÖʵÄÁ¿Å¨¶ÈÖÁÉÙΪ__________mol/L£¨±£ÁôÖÁСÊýµãºóһ룩¡£

¡¾´ð°¸¡¿2CuO£¨s£©+C£¨s£©=CO£¨g£©+Cu2O£¨s£©£¬¦¤H =+35.6kJmol-1 > < ËõСÌå»ýÔö´óѹǿ 0.05 mol¡¤L£­1¡¤min£­1 Ñô 4.05 Cu2++2e-=Cu 1.3¡Á10-3 1mol/L

¡¾½âÎö¡¿

¢ñ£®£¨1£© ¢ÙC£¨s£©+O2£¨g£©=CO£¨g£©¦¤H £½¨C110.4kJmol-1£¬

¢Ú2Cu2O£¨s£©+O2£¨g£©£½ 4CuO£¨s£© ¦¤H £½¨C292kJmol-1

¸ù¾Ý¸Ç˹¶¨ÂÉ1/2¡Á[¢Ù¡Á2-¢Ú]¿ÉµÃ£º2CuO£¨s£©+C£¨s£©=CO£¨g£©+Cu2O£¨s£©£¬¦¤H =1/2¡Á[-110.4¡Á2+292]= +35.6kJmol-1£»ËùÒԸ÷´Ó¦µÄÈÈ»¯Ñ§·½³Ìʽ£º2CuO£¨s£©+C£¨s£©=CO£¨g£©+Cu2O£¨s£©£¬¦¤H =+35.6kJmol-1 £»×ÛÉÏËùÊö£¬±¾Ìâ´ð°¸ÊÇ£º2CuO£¨s£©+C£¨s£©=CO£¨g£©+Cu2O£¨s£©£¬¦¤H =+35.6kJmol-1 ¡£

(2) ¢Ù¸ù¾ÝͼÏñ£¬Éý¸ßζȣ¬¼×´¼µÄƽºâת»¯ÂÊÔö´ó£¬ËµÃ÷ƽºâÕýÏòÒƶ¯£¬Õý·´Ó¦ÎªÎüÈÈ·´Ó¦£¬¦¤H£¾0£»600Kʱ£¬¼×´¼µÄת»¯ÂÊСÓÚX£¬ÔòYµã·´Ó¦ÄæÏò½øÐУ¬¦Ô(Õý)£¼¦Ô(Äæ)£»×ÛÉÏËùÊö£¬±¾Ìâ´ð°¸ÊÇ£º£¾£»£¼¡£

¢ÚÒª¼õС¼×´¼µÄת»¯ÂÊ£¬¿ÉÒÔͨ¹ýËõСÌå»ýÔö´óѹǿʹƽºâÄæÏòÒƶ¯£¬¿ÉÒÔʵÏÖ´ÓYµãµ½Xµã±ä»¯£»×ÛÉÏËùÊö£¬±¾Ìâ´ð°¸ÊÇ£ºËõСÌå»ýÔö´óѹǿ¡£

¢ÛÔÚt1Kʱ£¬¼×´¼µÄƽºâת»¯ÂÊΪ90%£¬Ïò¹Ì¶¨Ìå»ýΪ2LµÄÃܱÕÈÝÆ÷ÖгäÈë1molCH3OH(g)£¬Î¶ȱ£³Ö²»±ä£¬9·ÖÖÓʱ´ïµ½Æ½ºâ£¬Æ½ºâʱ£¬¼×´¼µÄÎïÖʵÄÁ¿Îª0.1mol£¬Ôò¼×ȩΪ0.9mol£¬ÇâÆøΪ0.9mol£¬ÈýÕßŨ¶È·Ö±ðΪ0.05mol/L¡¢0.45mol/L¡¢0.45mol/L£¬Ôò0¡«9minÄÚÓÃCH3OH(g)±íʾµÄ·´Ó¦ËÙÂÊv(CH3OH)£½£¨0.5-0.05£©/9=0.05 mol¡¤L£­1¡¤min£­1£¬t1Kʱ£¬¸Ã·´Ó¦µÄƽºâ³£ÊýK£½0.45¡Á0.45/0.05=4.05 mol/L£»

×ÛÉÏËùÊö£¬±¾Ìâ´ð°¸ÊÇ£º0.05 mol¡¤L£­1¡¤min£­1£»4.05 mol¡¤L£­1¡£

¢ò.´ÖÍ­¾­¹ýµç½â¾«Á¶²ÅÄܵõ½´¿Í­£»µç½âʱ£¬´ÖÍ­×÷Ñô¼«£¬Í­Àë×ÓÔÚÒõ¼«µÃµ½µç×ÓÉú³ÉÍ­£¬Òõ¼«µÄµç¼«·´Ó¦Ê½Îª£ºCu2++2e-=Cu£»×ÛÉÏËùÊö£¬±¾Ìâ´ð°¸ÊÇ£ºÑô£¬Cu2++2e-=Cu¡£

¢ó. Ksp[CuS]=c(Cu2+)c(S2-)=1¡Á10-36£¬Í­Àë×ÓµÄŨ¶ÈΪ0.5mg/L=5¡Á10-4g/L=(5¡Á10-4)/64mol/L£»ËùÒÔc(S2-)= Ksp[CuS]/c(Cu2+)=1¡Á10-36/[(5¡Á10-4)/64]¡Ö1.3¡Á10-31mol/L;×ÛÉÏËùÊö£¬±¾Ìâ´ð°¸ÊÇ£º1.3¡Á10-31mol/L¡£

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø