ÌâÄ¿ÄÚÈÝ
¶ÔÓÚÈÈ·½³Ìʽ˵·¨ÕýÈ·µÄÊÇ£º
A£®ÖкÍÈȦ¤H£½£57.3 kJ¡¤mol£1,, Ôò2H£«(aq)£« (aq)£«Ba2£«(aq)£«2OH£(aq)===BaSO4(s)£«2H2O(l)¡¡ ¡÷H£½£114.6 kJ¡¤mol£1
B£®½«0.5 molN2ºÍ1.5 mol H2ÓÚÃܱÕÈÝÆ÷Éú³ÉNH3(g)£¬·ÅÈÈ19.3 kJ£¬·½³ÌʽΪ£º
N2(g)+3H2(g) 2NH3(g) ¡÷H=¡ª38.6 kJ¡¤mol¡ª1
C. ±ê×¼×´¿ö£ºH2(g)£«F2(g) ===2HF(g) ¡÷H£½£270kJ/mol£¬
D£®°±Ñõ»¯£º4NH3(g)£«5O2(g) ===4NO(g)£«6H2O(g) ¡÷H£½£1025 kJ/mol
D
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
¶ÔÓÚÈÈ·½³Ìʽ˵·¨ÕýÈ·µÄÊÇ£º
A£®ÖкÍÈȦ¤H£½£57.3 kJ¡¤mol£1,, Ôò2H£«(aq)£«(aq)£«Ba2£«(aq)£«2OH£(aq)===BaSO4(s)£«2H2O(l)¡¡¡÷H£½£114.6 kJ¡¤mol£1 |
B£®½«0.5 molN2ºÍ1.5 mol H2ÓÚÃܱÕÈÝÆ÷Éú³ÉNH3(g)£¬·ÅÈÈ19.3 kJ£¬·½³ÌʽΪ£º N2(g)+3H2(g)2NH3(g)¡÷H="¡ª38.6" kJ¡¤mol¡ª1 |
C£®±ê×¼×´¿ö£ºH2(g)£«F2(g) ==="2HF(g)" ¡÷H£½£270kJ/mol£¬ |
D£®°±Ñõ»¯£º4NH3(g)£«5O2(g) ===4NO(g)£«6H2O(g)¡÷H£½£1025 kJ/mol |