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CH4、NH3、H2O、HF HF、H2O、NH3、CH4 H2O、HF、CH4、NH3 HF、H2O、CH4、NH3、
CH3OH的燃烧热为192.9 kJ/mol 反应①中的能量变化如右图所示 CH3OH转变成H2的过程一定要吸收能量 根据②推知:CH3OH(l)+1/2O2(g)=CO2(g)+2H2(g) ΔH > -192.9kJ/mol
-CH2OH>-CH2NH2>-CH2C(CH3)3 -CH2NH2>-CH2OH>-CH2C(CH3)3 -CH2C(CH3)3>-CH2NH2>-CH2OH -CH2NH2>-CH2C(CH3)3>-CH2OH
(CH3)3CCH2OH (CH3CH2)2CHOH CH3(CH2)3CH(CH3)OH CH3CH2C.(CH3)2OH
CH3OH 1/2CH3OH 1/3CH3OH 1/6CH3OH
HOCH2CH2OH HOCH2CH(OH)CH3 HOCH2CH2CH2OH CH3CH(OH)CH(OH)CH3
CH3 CH2 OH CH3 CHO CH3 COOH CH3 CO CH3
CH3OH的燃烧热为192.9 kJ/mol 反应①中的能量变化如下图所示 CH3OH转变成H2的过程一定要吸收能量 根据②推知反应CH3OH(l)+O2(g)===CO2(g)+2H2(g)的ΔH>-192.9 kJ/mol
CH3OH 1/2CH3OH 1/3CH3OH 1/6CH3OH
CH3COOH + OH- CH3COO-+H2O S2-+2H2O H2S+2OH- CH3COOH+H2O CH3COO-+H3O+ NH4++H2O NH3• H2O+H+
CH3OH 1/2CH3OH 1/3CH3OH 1/6CH3OH
( CH3 )3 C CH2 OH ( CH3 )3 C-OH CH3 CH(OH) CH3
ΔH>0,ΔH-TΔS<0 ΔH<0,ΔH-TΔS>0 ΔH>0,ΔH-TΔS>0 ΔH<0,ΔH-TΔS<0
①②③④⑤⑥之间的关系为同系物 [③⑥不是同分异构体 可发生消去反应的有机物有4 能被催化氧化为醛的有机物有4种
曲线①代表滴定二甲胺溶液的曲线 a点溶液中:c[(CH3)2NH2+]>c[CH3]2NH·H2O] d点溶液中:c(H+)=c(OH-)+c[CH3]2NH·H2O] b、c、e三点的溶液中,水的电离程度最大的是b点
②中CH3OH的反应热为192.9 kJ·mol-1 反应①中的能量变化如右图所示 CH3OH转变成H2的过程一定要吸收能量 根据②推知反应: CH3OH(l)+1/2O2(g)=CO2(g)+2H2(g)的 △H>-192.9kJ·mol-1
(CH3 )3CNH2 CH3CH2 OH CH3 NHCH(CH3 )2 (CH3 )2CHNH2