A．N2(g) +3H2(g) 2NH3(g)△H＝—Q1kJ·mol—1(Q1>0) |
| B．2SO3(g)2SO2(g)+O2(g)△H＝+Q2kJ·mol—1(Q2>0) |
| C．4NH3(g)+5O2(g)4NO(g)+6H2O(g)△H＝－Q3kJ·mol—1(Q3>0) |
| D．H2(g) +CO(g)C(s)+H2O(g)△H＝+Q4kJ·mol—1(Q4>0) |
| A．N2(g) +3H2(g)2NH3(g)△H＝—Q1kJ·mol—1(Q1>0) |
| B．2SO3(g)2SO2(g)+O2(g)△H＝+Q2kJ·mol—1(Q2>0) |
| C．4NH3(g)+5O2(g)4NO(g)+6H2O(g)△H＝－Q3kJ·mol—1(Q3>0) |
| D．H2(g) +CO(g)C(s)+H2O(g)△H＝+Q4kJ·mol—1(Q4>0) |
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