题文
下列热化学方程式中的ΔH能表示物质燃烧热的是
| A．2CO(g)+O2(g)=2CO2(g) ΔH =" -" 566 KJ·mol-1 |
| B．CH4(g)+2O2(g)=CO2(g)+2H2O(l) ΔH =" -" 890 KJ·mol-1 |
| C．2H2(g)+O2(g)=2H2O(l)ΔH =" -" 571.6 KJ·mol-1 |
| D．H2(g)+Cl2(g)="2HCl(g)ΔH" =" -" 184.6 KJ·mol-1 |
下列热化学方程式中的ΔH能表示物质燃烧热的是
| A．2CO(g)+O2(g)=2CO2(g) ΔH =" -" 566 KJ·mol-1 |
| B．CH4(g)+2O2(g)=CO2(g)+2H2O(l) ΔH =" -" 890 KJ·mol-1 |
| C．2H2(g)+O2(g)=2H2O(l)ΔH =" -" 571.6 KJ·mol-1 |
| D．H2(g)+Cl2(g)="2HCl(g)ΔH" =" -" 184.6 KJ·mol-1 |
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