題目列表(包括答案和解析)
25 ℃,101 k Pa時,強酸與強堿的稀溶液發(fā)生中和反應(yīng)的中和熱為57.3 kJ/mol,辛烷的燃燒熱為5518 kJ/mol。下列熱化學(xué)方程式書寫正確的是
A.2H+(aq) +(aq)+
(aq)+2OH
(aq)=BaSO4(s)+2H2O(1);
H=
57.3 kJ/mol
B.KOH(aq)+H2 SO4(aq)=
K2SO4(aq)+H2O(I);
H=
57.3kJ/mol
C.C8H18(I)+ O2 (g)=8CO
(g)+ 9H2O;
H=
5518 kJ/mol
D.2C8H18(g)+25O2 (g)=16CO2 (g)+18H2O(1); H=
5518 kJ/mol
25 ℃,101 k Pa時,強酸與強堿的稀溶液發(fā)生中和反應(yīng)的中和熱為57.3 kJ/mol,辛烷的燃燒熱為5518 kJ/mol。下列熱化學(xué)方程式書寫正確的是
A.2H+(aq) +
(aq)+
(aq)+2OH
(aq)=BaSO4(s)+2H
O(1);
H=
57.3 kJ/mol
B.KOH(aq)+
H
SO4(aq)=
K
SO4(aq)+H
O(I);
H=
57.3kJ/mol
C.C8H18(I)+
O
(g)=8CO
(g)+ 9H
O;
H=
5518 kJ/mol
D.2C8H18(g)+25O
(g)=16CO
(g)+18H
O(1);
H=
5518 kJ/mol
25 ℃,101 k Pa時,強酸與強堿的稀溶液發(fā)生中和反應(yīng)的中和熱為57.3 kJ/mol,辛烷的燃燒熱為5518 kJ/mol。下列熱化學(xué)方程式書寫正確的是 ( )
A.2H+(aq) +(aq)+
(aq)+2OH
(aq)=BaSO4(s)+2H
O(1);
H=
57.3 kJ/mol
B.KOH(aq)+H
SO4(aq)=
K
SO4(aq)+H
O(I);
H=
57.3kJ/mol
C.C8H18(I)+ O
(g)=8CO
(g)+ 9H
O;
H=
5518 kJ/mol
D.2C8H18(g)+25O (g)=16CO
(g)+18H
O(1);
H=
5518 kJ/mol
25 ℃,101 k Pa時,強酸與強堿的稀溶液發(fā)生中和反應(yīng)的中和熱為57.3 kJ/mol,辛烷的燃燒熱為5518 kJ/mol。下列熱化學(xué)方程式書寫正確的是( )
A.2H+(aq) +(aq)+
(aq)+2OH
(aq)=BaSO4(s)+2H
O(1);
H=
57.3 kJ/mol
B.KOH(aq)+H2 SO4(aq)=
K2SO4(aq)+H
O(I);
H=
57.3kJ/mol
C.C8H18(I)+ O2(g)=8CO
(g)+ 9H2O;
H=
5518 kJ/mol
D.2C8H18(g)+25O2(g)=16CO2 (g)+18H2O(1); H=
5518 kJ/mol
25 ℃,101 k Pa時,強酸與強堿的稀溶液發(fā)生中和反應(yīng)的中和熱為57.3 kJ/mol,辛烷的燃燒熱為5518 kJ/mol。下列熱化學(xué)方程式書寫正確的是
A.2H+(aq) +(aq)+
(aq)+2OH
(aq)=BaSO4(s)+2H
O(1);
H=
57.3kJ/mol
B.KOH(aq)+H
SO4(aq)=
K
SO4(aq)+H
O(I);
H=
57.3kJ/mol
C.C8H18(I)+ O
(g)=8CO
(g)+ 9H
O;
H=
5518 kJ/mol
D.2C8H18(g)+25O (g)=16CO
(g)+18H
O(1);
H=
5518 kJ/mol
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