A.实验室配制\(\rm{FeCl_{3}}\)溶液时,需将\(\rm{FeCl}\)\(\rm{{\,\!}_{3}}\) \(\rm{(s)}\)溶解在较浓盐酸中,然后加水稀释 |
B.反应\(\rm{2CO+2NO = N_{2}}\)\(\rm{+2CO}\)\(\rm{{\,\!}_{2}}\)在常温下能自发进行,则反应的\(\rm{\Delta }\)\(\rm{H > 0}\),\(\rm{\Delta }\)\(\rm{S < 0}\) |
C.\(\rm{0.1mol·L^{-1}}\)\(\rm{NH}\)\(\rm{{\,\!}_{4}}\)\(\rm{Cl}\)溶液加水稀释,\(\rm{c(H}\)\(\rm{{\,\!}^{+}}\)\(\rm{)/c(NH}\)\(\rm{{\,\!}_{4}^{+}}\)\(\rm{)}\)的值减小 |
D.反应\(\rm{CH_{3}}\)\(\rm{COOCH}\)\(\rm{{\,\!}_{3}}\)\(\rm{+H}\)\(\rm{{\,\!}_{2}}\)\(\rm{O}\)\(\rm{⇌ }\)\(\rm{CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{COOH+CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{OH}\) \(\rm{\Delta }\)\(\rm{H > 0}\),达到平衡时,加入少量固体\(\rm{NaOH}\),则乙酸甲酯水解反应转化率增大 |