题目列表(包括答案和解析)
已知:强酸和强碱在稀溶液中发生反应时的中和热为57.3 kJ · mol-1,101 k Pa时辛烷
的燃烧热为5518 kJ·mol-1。则下列热化学方程式书写正确的是
A.H+ + OH- = H2O △H = -57.3kJ·mol-1
B.2NaOH(aq)+ H2SO4(aq)= Na2SO4(aq)+2 H2O(l) △H =-114.6 kJ·mol-1
C.2C8H18(l) + 25O2(g) = 16CO2(g) + 18H2O(g) △H = -11036 kJ·mol-1
D.2C8H18(l) + 25O2(g) = 16CO2(g))+18H2O(l) △H = -11036kJ·mol-1
已知:强酸和强碱在稀溶液中发生反应时的中和热为57.3 kJ · mol-1,101 k Pa时辛烷的燃烧热为5518 kJ·mol-1。则下列热化学方程式书写正确的是
A.H++OH-=H2O△H = -57.3kJ·mol-1 |
B.2NaOH(aq)+ H2SO4(aq)= Na2SO4(aq)+2H2O(l)△H = -114.6 kJ·mol-1 |
C.2C8H18(l) + 25O2(g) = 16CO2(g)+18H2O(g)△H = -11036 kJ·mol-1 |
D.2C8H18(l) + 25O2(g) = 16CO2(g)+18H2O(l)△H = -5518kJ·mol-1 |
已知:强酸和强碱在稀溶液中发生反应时的中和热为57.3 kJ · mol-1,101 k Pa时辛烷的燃烧热为5518 kJ·mol-1。则下列热化学方程式书写正确的是
A.H++OH-=H2O △H = -57.3kJ·mol-1
B.2NaOH(aq)+ H2SO4(aq)= Na2SO4(aq)+2H2O(l) △H = -114.6 kJ·mol-1
C.2C8H18(l) + 25O2(g) = 16CO2(g)+18H2O(g) △H = -11036 kJ·mol-1
D.2C8H18(l) + 25O2(g) = 16CO2(g)+18H2O(l) △H = -5518kJ·mol-1
A.H++OH-=H2O△H = -57.3kJ·mol-1 |
B.2NaOH(aq)+ H2SO4(aq)= Na2SO4(aq)+2H2O(l)△H = -114.6 kJ·mol-1 |
C.2C8H18(l) + 25O2(g) = 16CO2(g)+18H2O(g)△H = -11036 kJ·mol-1 |
D.2C8H18(l) + 25O2(g) = 16CO2(g)+18H2O(l)△H = -5518kJ·mol-1 |
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