ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿¹¤ÒµÉÏ¿ÉÒÔÀûÓÃˮúÆø(H2¡¢CO)ºÏ³É¶þ¼×ÃÑ(CH3OCH3)£¬Í¬Ê±Éú³ÉCO2¡£
2 H2(g)+CO(g) = CH3OH(g) ¦¤H£½£91.8 kJ/mol
2CH3OH(g) = CH3OCH3 (g) + H2O(g) ¦¤H£½£23.5 kJ/mol
CO(g) + H2O(g) = CO2(g) +H2(g) ¦¤H£½£41.3 kJ/mol
ÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ
A£®¶þ¼×ÃÑÓëÒÒ´¼»¥ÎªÍ¬·ÖÒì¹¹Ìå
B£®CH3OCH3ÖÐÖ»º¬Óм«ÐÔ¹²¼Û¼ü
C£®CH3OHºÍÒÒ´¼¾ù¿É·¢ÉúÏûÈ¥·´Ó¦
D£®Ë®ÃºÆøºÏ³É¶þ¼×ÃѵÄÈÈ»¯Ñ§·½³Ìʽ£º 3H2(g)+ 3CO(g) = CH3OCH3 (g) + CO2(g)¦¤H£½£248.4kJ/mol
¡¾´ð°¸¡¿C
¡¾½âÎö¡¿
ÊÔÌâ·ÖÎö£ºA£®¶þ¼×ÃÑÓëÒÒ´¼µÄ·Ö×ÓʽÏàͬ£¬µ«½á¹¹Ïàͬ£¬»¥ÎªÍ¬·ÖÒì¹¹Ì壬¹ÊAÕýÈ·£»B£®CH3OCH3ÖÐÖ»º¬ÓÐC-H¡¢C-O¼«ÐÔ¹²¼Û¼ü£¬¹ÊBÕýÈ·£»C£®CH3OH²»ÄÜ·¢ÉúÏûÈ¥·´Ó¦£¬¹ÊC´íÎó£»D£®¢Ù2 H2(g)+CO(g) = CH3OH(g)¦¤H£½£91.8 kJ/mol£¬¢Ú2CH3OH(g) = CH3OCH3 (g) + H2O(g)¦¤H£½£23.5 kJ/mol£¬¢ÛCO(g) + H2O(g) = CO2(g) +H2(g)¦¤H£½£41.3 kJ/mol£¬¸ù¾Ý¸Ç˹¶¨ÂÉ£¬½«¢Ù¡Á2+¢Ú+¢ÛµÃ£º3H2(g)+ 3CO(g) = CH3OCH3 (g) + CO2(g)¦¤H£½£248.4kJ/mol£¬¹ÊDÕýÈ·£»¹ÊÑ¡C¡£