下列各组热化学方程式中，△H1>△H2的是
A．C(s)＋O2(g)===CO2(g) △H1 C(s)＋ ===CO(g)△H2 |
| B．S(g)＋O2(g)===SO2(g) △H1S(s)＋O2(g)===SO2(g) △H2 |
| C．2H2(g)＋O2(g)===2H2O(l)△H1H2(g)＋===H2O(l)△H2 |
| D．CaCO3(s)===CaO(s)＋CO2(g)△H1 CaO(s)＋H2O(l)===Ca(OH)2(s)△H2 |
下列各组热化学方程式中，△H1>△H2的是
| A．C(s)＋O2(g)===CO2(g) △H1 C(s)＋===CO(g)△H2 |
| B．S(g)＋O2(g)===SO2(g) △H1S(s)＋O2(g)===SO2(g) △H2 |
| C．2H2(g)＋O2(g)===2H2O(l)△H1H2(g)＋===H2O(l)△H2 |
| D．CaCO3(s)===CaO(s)＋CO2(g)△H1 CaO(s)＋H2O(l)===Ca(OH)2(s)△H2 |
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