在同温同压下,硫燃烧的热化学方程式如下:
① S ( g ) + O2 (g ) = SO2 ( l );△H1 =" a" KJ·mol-1
② S ( g ) + O2 ( g ) = SO2 ( g );△H2 =" b" KJ·mol-1
③ S ( s ) + O2 ( g ) = SO2 ( g );△H3 =" c" KJ·mol-1 ,则a、b、c的大小关系正确的是
A.a>b>c | B.a<b<c | C.b<c<a | D.b>c>a |
在同温同压下,硫燃烧的热化学方程式如下:
① S ( g ) + O2 (g ) = SO2 ( l );△H1 =" a" KJ·mol-1
② S ( g ) + O2 ( g ) = SO2 ( g );△H2 =" b" KJ·mol-1
③ S ( s ) + O2 ( g ) = SO2 ( g );△H3 =" c" KJ·mol-1 ,则a、b、c的大小关系正确的是
A.a>b>c | B.a<b<c | C.b<c<a | D.b>c>a |