下列反应中,在高温下不能自发进行的是:
A.CO(g)=C(s)+1/2O2 △H>0 |
B.2N2O5(g)=4NO2(g)+O2(g) |
C.(NH4 )2CO3(s)=NH4HCO3(s)+NH3(g) △H="+74.9" kJ/mol |
D.MgCO3(s)=MgO(s)+CO2(g) |
下列反应中,在高温下不能自发进行的是:
A.CO(g)=C(s)+1/2O2 △H>0 |
B.2N2O5(g)=4NO2(g)+O2(g) |
C.(NH4 )2CO3(s)=NH4HCO3(s)+NH3(g) △H="+74.9" kJ/mol |
D.MgCO3(s)=MgO(s)+CO2(g) |