ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿»ð¼ýÍƽøÆ÷ÖÐÊ¢ÓÐÇ¿»¹Ô¼ÁҺ̬루N2H4£©ºÍÇ¿Ñõ»¯¼ÁҺ̬˫ÑõË®¡£µ±ËüÃÇ»ìºÏ·´Ó¦Ê±£¬¼´²úÉú´óÁ¿µªÆøºÍË®ÕôÆø£¬²¢·Å³ö´óÁ¿µÄÈÈ¡£ÒÑÖª0.4molҺ̬ëÂÓë×ãÁ¿µÄҺ̬˫ÑõË®·´Ó¦£¬Éú³ÉµªÆøºÍË®ÕôÆø£¬·Å³ö256.652kJµÄÈÈÁ¿¡£
£¨1£©·´Ó¦µÄÈÈ»¯Ñ§·½³ÌʽΪ____________________
£¨2£©ÓÖÒÑÖªH2O(l)£½H2O(g)¦¤H=+44kJ¡¤mol-1¡£Ôò16gҺ̬ëÂÓëҺ̬˫ÑõË®·´Ó¦Éú³ÉҺ̬ˮʱ·Å³öµÄÈÈÁ¿ÊÇ________kJ
£¨3£©´Ë·´Ó¦ÓÃÓÚ»ð¼ýÍƽø£¬³ýÊÍ·Å´óÁ¿ÈȺͿìËÙ²úÉú´óÁ¿ÆøÌåÍ⣬»¹ÓÐÒ»¸öºÜ´óµÄÓŵãÊÇ_____
¡¾´ð°¸¡¿£¨6·Ö£¬Ã¿¿Õ2·Ö£©
£¨1£©N2H4(l)£«2H2O2(l)===N2(g)£«4H2O(g)¦¤H£½£641.63 kJ¡¤mol£1
£¨2£©408.815
£¨3£©¶Ô»·¾³ÎÞÎÛȾ
¡¾½âÎö¡¿
£¨1£©¸ù¾Ý0.4molҺ̬ëÂÓë×ãÁ¿µÄҺ̬˫ÑõË®·´Ó¦£¬Éú³ÉµªÆøºÍË®ÕôÆø£¬·Å³ö256.652kJµÄÈÈÁ¿¡£¿ÉÖª1mol N2H4ÍêÈ«·´Ó¦·Å³öÈÈÁ¿Îª256.652kJ¡Á1/0.4£½641.63kJ¡£ËùÒÔN2H4ÍêÈ«·´Ó¦µÄÈÈ»¯Ñ§·½³ÌʽΪ£ºN2H4(l) +2H2O2(l)=N2(g)+4H2O(g) ¡÷H=-641.63kJ¡¤mol-1¡£´ð°¸£ºN2H4(l) +2H2O2(l)=N2(g)+4H2O(g) ¡÷H=-641.63kJ¡¤mol-1¡£
£¨2£©ÒòΪH2O(l)£½H2O(g)£»¦¤H=+44kJ¡¤mol-1¡£16gҺ̬ëÂΪ0.5mol,ÓëҺ̬˫ÑõË®·´Ó¦Éú³ÉҺ̬ˮʱ·Å³öµÄÈÈÁ¿Îª£¨641.63+444£©kJ0.5=408.815 kJ£»´ð°¸£º408.815¡£
£¨3£©ÒòΪ¸Ã·´Ó¦Éú³ÉÎïΪµªÆøºÍË®ÕôÆø£¬ËùÒÔ²úÎï²»»áÔì³É»·¾³ÎÛȾ¡£´ð°¸£º²úÎï²»»áÔì³É»·¾³ÎÛȾµÈ¡£