ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿¸ù¾ÝÈÈ»¯Ñ§·½³Ìʽ:S(s)+O2(g)SO2(g) ¦¤H=akJ¡¤mol-1(a=-297.2)¡£·ÖÎöÏÂÁÐ˵·¨,ÆäÖв»ÕýÈ·µÄÊÇ( )
A. S(s)ÔÚO2(g)ÖÐȼÉյķ´Ó¦ÊÇ·ÅÈÈ·´Ó¦
B. S(g)+O2(g)SO2(g) ¦¤H=bkJ¡¤mol-1,Ôòa>b
C. 1 mol SO2(g)Ëù¾ßÓеÄÄÜÁ¿µÍÓÚ1 mol S(s)Óë1 mol O2(g)Ëù¾ßÓеÄÄÜÁ¿Ö®ºÍ
D. 16 g¹ÌÌåÁòÔÚ¿ÕÆøÖгä·ÖȼÉÕ,¿ÉÎüÊÕ148.6 kJµÄÈÈÁ¿
¡¾´ð°¸¡¿D
¡¾½âÎö¡¿ÊÔÌâ·ÖÎö£ºÓÉÌâÖÐÌõ¼þ¿ÉÖª£º·´Ó¦µÄÈÈЧӦ¦¤H="a" kJ¡¤mol-1=-297£®2 kJ¡¤mol-1£¬¿ÉÖª¸Ã·´Ó¦µÄÕýÏò·´Ó¦Îª·ÅÈÈ·´Ó¦£¬¹ÊD´íÎó¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿