摘要：10．下列两组热化学方程式中.有关△H的比较正确的是 ① CH4(g)+2O2(g) ====CO2(g)+2H2O(g),△H1 CH4(g)+2O2(g) ====CO2(g)+2H2O(l),△H2 ② NaOH(aq) +H2SO4(浓)==== Na2SO4(aq) +H2O(l) ,△H3 NaOH(aq) + CH3COOH (aq)==== CH3COONa (aq) +H2O(l) ,△H4 A．△H1＞△H2,△H3＞△H4 B．△H1＞△H2,△H3＜△H4 C．△H1＝△H2,△H3＜△H4 D．△H1＜△H2,△H3＞△H4
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下列两组热化学方程式中，有关△H的比较正确的是( )
① CH4g)＋2O2(g) ====CO2(g)＋2H2O(g)；△H1
CH4g)＋2O2(g) ====CO2(g)＋2H2O(l)；△H2
② NaOH(aq) +H2SO4(浓)==== Na2SO4(aq) +H2O(l) ；△H3
NaOH(aq) + CH3COOH (aq)==== CH3COONa (aq) +H2O(l) ；△H4
A．△H1＞△H2；△H3＞△H4 B．△H1＞△H2；△H3＜△H4
C．△H1＝△H2；△H3＜△H4 D．△H1＜△H2；△H3＞△H4
查看习题详情和答案>>下列两组热化学方程式中，有关△H的比较正确的是( )
① CH4(g)＋2O2(g) ====CO2(g)＋2H2O(g)；△H1
CH4(g)＋2O2(g) ====CO2(g)＋2H2O(l)；△H2
② NaOH(aq) +H2SO4(浓)==== Na2SO4(aq) +H2O(l) ；△H3
NaOH(aq) + CH3COOH (aq)==== CH3COONa (aq) +H2O(l) ；△H4
A．△H1＞△H2；△H3＞△H4 B．△H1＞△H2；△H3＜△H4
C．△H1＝△H2；△H3＜△H4 D．△H1＜△H2；△H3＞△H4
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下列两组热化学方程式中，有关△H的比较正确的是( )
① CH4g)＋2O2(g) ====CO2(g)＋2H2O(g)；△H1
CH4g)＋2O2(g) ====CO2(g)＋2H2O(l)；△H2
② NaOH(aq) +H2SO4(浓)="===" Na2SO4(aq) +H2O(l) ；△H3
NaOH(aq) + CH3COOH (aq)="===" CH3COONa (aq) +H2O(l) ；△H4
① CH4g)＋2O2(g) ====CO2(g)＋2H2O(g)；△H1
CH4g)＋2O2(g) ====CO2(g)＋2H2O(l)；△H2
② NaOH(aq) +H2SO4(浓)="===" Na2SO4(aq) +H2O(l) ；△H3
NaOH(aq) + CH3COOH (aq)="===" CH3COONa (aq) +H2O(l) ；△H4
| A．△H1＞△H2；△H3＞△H4 | B．△H1＞△H2；△H3＜△H4 |
| C．△H1＝△H2；△H3＜△H4 | D．△H1＜△H2；△H3＞△H4 |
H2SO4(浓)====