ÌâÄ¿ÄÚÈÝ
(1998ÄêÉϺ££¬35)ʯÓͼ°Æä·ÖÁó²úÎïÔÚ¹©Ñõ²»×ãʱȼÉÕ£¬³£³£²úÉúCO£¬ÕâÒ²Êdz£¼ûµÄ´óÆøÎÛȾÎïÖ®Ò»¡£½«Ä³Æø̬ÌþÔÚ5±¶Ìå»ýµÄ´¿ÑõÖÐȼÉÕ£¬²úÎïͨ¹ý×ãÁ¿Na2O2²¢ÔÚµç»ð»¨Á¬Ðø×÷ÓÃϳä·Ö·´Ó¦£¬Éú³ÉµÄÆøÌåÌå»ýËõСµ½È¼ÉÕºó²úÎïÌå»ýµÄ3/8(ÆøÌåÌå»ý¶¼ÔÚ100 ¡æÒÔÉÏ£¬1.01¡Á105Paʱ²â¶¨)£º(1)ÊÔд³öͨʽΪCxHyµÄijÌþÔÚ¹©Ñõ²»×ãʱ£¬È¼ÉյĻ¯Ñ§·½³Ìʽ(CO2µÄϵÊýÉ趨Ϊm)¡£
(2)µ±m=2ʱ£¬Çó¸ÃÌþµÄ·Ö×Óʽ¡£
(3)Èô1 molijÆø̬ÌþÔÚ¹©Ñõ²»×ãʱȼÉÕ£¬²úÎïÔÚ×ãÁ¿Na2O2ºÍµç»ð»¨Á¬Ðø×÷ÓÃÏÂ
²úÉú3 molÑõÆø£¬ÇÒ¹ÌÌåNa2O2ÔöÖØ·¶Î§Îª90g¡Ü¦¤£×¡Ü118g£¬ÇóÌþ¿ÉÄܵķÖ×ÓʽºÍȼÉÕ²úÎïCOÓëCO2µÄÎïÖʵÄÁ¿Ö®±È£¬½«½á¹ûÌîÈëϱí
ÌþµÄ·Ö×Óʽ | n£¨CO£©/n£¨CO2£© |
|
|
´ð°¸£º
£¨1£©CxHy+O2¡úmCO1+H2O+(x-m)CO
(2)
µ±m=2ʱ£¬½âµÃ£ºx=4 y=8 ËùÒÔ¸ÃÌþΪC4H8
(3)
·Ö×Óʽ | |
C3H8 | |
C4H6 |
ÒÔϼÆËãºÍÌÖÂÛ¹ý³Ì¹©²Î¿¼£º
¹ÌÌåÖÊÁ¿×ÜÔöÖØ
¦¤£×£½¦¤£×£¨CO2£©+¦¤W£¨H2O£©+¦¤W£¨CO£©£½28£í+y+28(x-m)£½28x+y
¢Ù¸ù¾ÝNa2O2ÔöÖØ 90¡Ü28x+y¡Ü118ÌÖÂÛµÃÆø̬ÌþÖÐx=3ʱy¡Ý6£»x=4ʱ£ù¡Ü6¡£
´ËÌõ¼þϺÏÀíµÄ´ð°¸ÓУºC4H6¡¢C4H4¡¢C3H8¡¢C3H6
¢Ú¸ù¾ÝȼÉÕ²úÎïͨ¹ý×ãÁ¿Na2O2²úÉúO2µÄÌå»ý¶¼ÊÇ3Ìå»ý
ÒòΪx£¾m ËùÒÔ£ø£¾6-
ÌÖÂÛµÃÆø̬ÌþÖÐx=3ʱ y£¾6£¬x=4ʱ y£¾4
¸ù¾Ý¢Ù¢ÚÌõ¼þÐèͬʱÂú×㣬´Ó¶ø·ñ¶¨C4H4£¬·ñ¶¨C3H6¡£
ËùÒÔ¸ÃÌþµÄ¿ÉÄÜÐÔΪC3H8ÓëC4H6¡£
ÔÙ¸ù¾Ý£½3£¬
y=8ʱ£¬m=2 =
y=6ʱ£¬m=3 =