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CB型齿轮泵为±2×105Pa,YB型叶片泵为±1.5×105Pa CB型齿轮泵为±1.5×105Pa,YB型叶片泵为±2×105Pa CB型齿轮泵为±1×105Pa,YB型叶片泵为±2×105Pa CB型齿轮泵为±2×105Pa,YB型叶片泵为±1×105Pa
H2O(g)=H2(g)+1/2O2(g) △H.(298K)=+242KJ/mol 2H2(g)+O2(g)=2H2O(1) △H.(298K)=-484KJ/mol H2(g)+1/2O2(g)=H2O(g) △H.(298K)=+242KJ/mol 2H2(g)+O2(g)=2H2O(g) △H.(298K)=+484KJ/mol
40×105Pa 60×105Pa 100×105Pa 140×105Pa
H2O(g)=H2(g)+1/2 O2(g) ΔH=+242 kJ/mol 2 H2(g)+O2(g)=2 H2O(g) ΔH=-484 kJ/mol H2(g)+1/2 O2(g)=H2O(g) ΔH=+242 kJ/mol 2 H2(g)+O2(g)=2 H2O(g) ΔH=+484 kJ/mol
2×105pa 5×105pa 8×105pa 10×105pa
CO2(g)+NaOH(aq)=NaHCO3(aq) ΔH=-(2y-x)kJ/mol CO2(g)+NaOH(aq)=NaHCO3(aq) ΔH=-(2x-y)kJ/mol CO2(g)+NaOH(aq)=NaHCO3(aq) ΔH=-(4x-y)kJ/mol 2CO2(g)+2NaOH(l)=2NaHCO3(l) ΔH=-(8x-2y)kJ/mol
178161 -178-161 178-161 -178161
CO2(g) + NaOH(aq) = NaHCO3(aq) H= -(2y-x) kJ/mol CO2(g) + NaOH(aq) = NaHCO3(aq) H= -(2x-y) kJ/mol CO2(g) + NaOH(aq) = NaHCO3(aq) H= -(4x-y) kJ/mol 2CO2(g) + 2NaOH(l) = NaHCO3(l) H= -(8x-2y) kJ/mol
CO2(g)+NaOH(aq)===NaHCO3(aq) ΔH.=-(2y-x) kJ/mol CO2(g)+NaOH(aq)===NaHCO3(aq) ΔH.=-(2x-y) kJ/mol CO2(g)+NaOH(aq)===NaHCO3(aq) ΔH.=-(4x-y) kJ/mol 2CO2(g)+2NaOH(l)===2NaHCO3(l) ΔH.=-(8x-2y) kJ/mol
CO2(g)+NaOH(aq)===NaHCO3(aq) ΔH.=-(2y-x) kJ·mol-1 CO2(g)+NaOH(aq)===NaHCO3(aq) ΔH.=-(2x-y) kJ·mol-1 CO2(g)+NaOH(aq)===NaHCO3(aq) ΔH.=-(4x-y) kJ·mol-1 CO2(g)+2NaOH(l)===2NaHCO3(l) ΔH.=-(8x-2y) kJ·mol-1
CO2(g)+NaOH(aq)===NaHCO3(aq);ΔH.=-(2y-x)kJ·mol-1 CO2(g)+NaOH(aq)===NaHCO3(aq);ΔH.=-(2x-y)kJ·mol-1 CO2(g)+NaOH(aq)===NaHCO3(aq);ΔH.=-(4x-y)kJ·mol-1 2CO2(g)+2NaOH(l)===2NaHCO3(l);ΔH.=-(8x-2y)kJ·mol-1
CO2(g)+NaOH(aq)=NaHCO3(aq)△H=﹣(2y﹣x)kJ·mol﹣1 CO2(g)+NaOH(aq)=NaHCO3(aq)△H=﹣(2x﹣y)kJ·mol﹣1 CO2(g)+NaOH(aq)=NaHCO3(aq)△H=﹣(4x﹣y)kJ·mol﹣1 2CO2(g)+2NaOH(aq)=2NaHCO3(aq)△H=﹣(8x﹣y)kJ·mol﹣1
CO2(g)+NaOH(aq)==NaHCO3(aq) ΔH=-(2y-x) kJ/mol CO2(g)+NaOH(aq)==NaHCO3(aq) ΔH=-(2x-y) kJ/mol CO2(g)+NaOH(aq)==NaHCO3(aq) ΔH=-(4x-y) kJ/mol CO2(g)+2NaOH(l)==2NaHCO3(l) ΔH=-(8x-2y) kJ/mol
CO2(g)+NaOH(aq)=NaHCO3(aq) △H=-(2y-x)kJ・mol―1 CO2(g)+NaOH(aq)=NaHCO3(aq) △H=-(2x-y)kJ・mol―1 CO2(g)+NaOH(aq)=NaHCO3(aq) △H=-(4x-y)kJ・mol―1 2CO2(g)+2NaOH(aq)=2NaHCO3(aq) △H=-(8x-2y)kJ・mol―1
283.5kJ/mol 172.5kJ/mol -172.5kJ/mol -504 kJ/mol
283. kJ·mol-1 +172.5 kJ·mol-1 -172.5 kJ·mol-1l -504 kJ·mol-1