ÌâÄ¿ÄÚÈÝ
ÏÂÁл¯Ñ§ÓÃÓïµÄÏà¹Ø±íÊöÕýÈ·µÄÓÐ ( )
| A£®H+(aq)+OH-(aq)=H2O(l) ¦¤H=" -a" kJ/mol,¹Ê1 mol NaOH¹ÌÌåÓë×ãÁ¿µÄÏ¡ÑÎËá·´Ó¦,·Å³öÈÈÁ¿Îªa kJ |
| B£®ÒòCuSO4¡¤5H2O(s)=CuSO4(s)+5H2O(l) ¦¤H="+b" kJ/mol£¬¹Ê1 mol CuSO4(s)ÈÜÓÚˮʱ,·Å³öÈÈÁ¿b kJ |
| C£®ÒòÇâÆøµÄȼÉÕÈÈΪc kJ/mol£¬¹Êµç½âË®µÄÈÈ»¯Ñ§·½³ÌʽΪ£º2H2O(l)=2H2(g)+O2(g) ¦¤H="+c" kJ/mol |
| D£®ÒòN2(g)+3H2(g) |
D
ÊÔÌâ·ÖÎö£ºA H+(aq)+OH-(aq)=H2O(l) ¦¤H=" -a" kJ/mol,±íʾËá¼îÖкͷ´Ó¦µÄ·´Ó¦ÈÈΪa kJ¡£µ«ÓÉÓÚNaOHÈܽâÓÚˮʱ·ÅÈÈ£¬ËùÒÔ1 mol NaOH¹ÌÌåÓë×ãÁ¿µÄÏ¡ÑÎËá·´Ó¦,·Å³öÈÈÁ¿´óÓÚa kJ¡£´íÎó¡£B£®ÒòCuSO4¡¤5H2O(s)=CuSO4(s)+5H2O(l) ¦¤H="+b" kJ/mol£¬¹Ê1 mol CuSO4(s)ÈÜÓÚˮʱ,ÎüÊÕÈÈÁ¿b kJ¡£´íÎó¡£C£®ÇâÆøµÄȼÉÕÈÈΪc kJ/mol£¬¹Êµç½âË®µÄÈÈ»¯Ñ§·½³ÌʽΪ£º2H2O(l)=2H2(g)+O2(g) ¦¤H="+2c" kJ/mol.´íÎó¡£D£®·´Ó¦N2(g)+3H2(g)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿