你可能感兴趣的试题
Al(OH)3(s)+NaOH(aq) NaAl(OH)4(aq);△H<0 CH3CH2OH(l)+3O2(g)→2CO2(g)+3H2O(l); △H<0 4Fe(OH)2(s)+2H2O(l)+O2(g) 4Fe(OH)3; △H<0 H2(g)+Cl2(g) 2HCl(g); △H<0
ΔH1>0,ΔH3<0 ΔH2>0,ΔH4>0 ΔH1=ΔH2+ΔH3 ΔH3=ΔH4+ΔH5
HCl+NaOH= NaCl+H2O ΔH.<0 2CH3OH(l)+3O2(g) =2CO2(g)+4H2O(l) ΔH.<0 4Fe(OH)2(s)+2H2O(l)+O2(g) = 4 Fe(OH)3(s) ΔH.<0 2H2(g)+O2(g) =2H2O(l) ΔH.<0
H2(g)+Cl2(g)=2HCl(g);△H=-a 1/2H2(g)+1/2Cl2(g)=HCl(g);△H=-b C(s)+1/2O2(g)=CO (g);△H=-a (s)+O2(g)=CO2 (g);△H=-b C. 2H2(g)+O2(g)=2H2O(l);△H=-a 2H2(g)+O2(g)=2H2O(g);△H=-b S(g)+O2(g)=SO2 (g);△H=-a S(s)+O2(g)=SO2 (g);△H=-b
需要加热才能发生的反应一定是吸热反应 反应4Fe(OH)2(s)+O2(g)+2H2O(l)===4Fe(OH)3(s)的ΔH.>0 已知①2H2(g)+O2(g)===2H2O(g) ΔH.1=a kJ·mol-1, ②2H2(g)+O2(g)===2H2O(l) ΔH.2=b kJ·mol-1,则aCO(g)的标准燃烧热ΔH.=-283.0 kJ·mol-1,则2CO2(g)===2CO(g)+O2(g) ΔH.=566.0 kJ·mol-1
H+H2O→H3O+ O3(s)→O(s)+O2(g) H2O(s)→H2O(l) H4(g)+2O2(g)→O2(g)+2H2O(l)
2H2(g) + O2(g)= 2H2O(g) △H1 ; 2H2(g) + O2(g) = 2H2O(l) △H2 S(g) + O2(g) =SO2(g) △H1 ; S(s) + O2(g) = SO2(g) △H2 CO(g) + 1/2 O2(g) = CO2(g) △H1 ;2CO(g) + O2(g) = 2CO2(g) △H2 C.(s)+H2O(g)=CO(g)+H2(g) △H1 ;CaO(s)+H2O(l)===Ca(OH)2(s) △H2
2H2(g)+O2(g)=2H2O(l) NO(g)+(1/2)O2(g)=NO2(g) C(金刚石)=C(石墨) H2(g)+(1/2)O2(g)=H2O(l)
HCl(aq) + NaOH(aq) = NaCl(aq) + H2O(l) △H < 0 2CH3OH(l) +3O2(g) = 2CO2(g) + 4H2O(l) △H < 0 4Fe(OH)2(s) + 2H2O(l) + O2(g) = 4Fe(OH)3(s) △H < 0 2H2(g) + O2(g) = 2H2O(l) △H < 0
Al(OH)3(s)+NaOH(aq) NaAl(OH)4(aq) △H<0 CH3CH2OH(l)+3O2(g) 2CO2(g)+3H2O(l) △H<0 4Fe(OH)2(s)+2H2O(l)+O2(g) 4Fe(OH)3 (s) △H<0 H2(g)+Cl2(g) 2HCl(g) △H<0
HCl(aq)+ NaOH(aq)= NaCl(aq)+ H2O(l) △H < 0 2CH3OH(l)+3O2(g)= 2CO2(g)+ 4H2O(l) △H < 0 4Fe(OH)2 (s)+ 2H2O(l)+ O2 (g)= 4Fe(OH)3 (s) △H < 0 2H2(g)+ O2(g)= 2H2O(l) △H < 0