泰安中学高二年级化学学科第一次学情调研试题答案2023.10
1.B 2.C 3.B 4.C 5.B 6.D 7.B 8.C 9.B 10.C
11.AB 12.C 13.AB 14.D 15.B C
16.(1)环形玻璃搅拌棒;大小烧杯口未平
(2)保温隔热, ,减小热量损失
(3)偏小
(4)不相等;相等
(5)偏小;无影响
(6)9;- kJ/mol
17.(1)N2(g)+3H2(g)==2NH3(g)ΔH=-92kJ·mol-1
(2)不变 (3)
(4)FeO(s)+CO(g)===Fe(s)+CO2(g) ΔH=-218kJ·mol-1
18.(1) CH3OH(l)+O2(g)==CO2(g)+2H2O(l) ΔH =-725.8 kJ·mol-1
(2)4FeCO3(s)+O2(g)==2Fe2O3(s)+4CO2(g) ΔH =-260 kJ/mol
C2H5OH(l)+3O2(g)==2CO2(g)+3H2O(l) ΔH =-2Q kJ·mol-1
299 -139 1793kJ
19.(1) 正极 O2+4e-+2H2O=4OH-
(2) 阴极 2Cl-+2H2O2OH-+H2↑+Cl2↑ (3)减小 (4) 0.64
20.(1)①2Fe-4e-===2Fe2+ ②O2+2H2O+4e-===4OH- (2)D
(3)铝(或Al) 石墨(答案合理即可) O2+2H2O+4e-===4OH-
4Al+3O2+6H2O===4Al(OH)3