The effective activation energies of crystal growth on the faces (100) of KCI, KBr, and K I crystals in water solutions have been determined. The values obtained have been compared with the respective crystal lattice energies according to Sletter and Mayer, as well as with the experimental ones. The activation energies of crystal growth are in strictest linear dependence on the heats of dehydration of the ions. This shows that the dehydration of the ions is most probably the ratecontrolling stage of the process of crystal growth in solutions. This concept is sup- ported by the results of an experimental study of the rates of growth on the faces (1 11) and ( ) of NaClO, crystals. OnpeneneHn Kaxcynwieca 3 ~e p r m i aKTmaqmi pocTa rpaHet (100) KpHcTannoB KC1, KBr y K1 E13 BOAHHX PaCTBOpOB. nOJIyW2HHbIe aHaW3HIlH COIIOCTaBJIeHbI C 3KCIlepHMeHTaJIbHbIMW EI C BWHCJIeHHbIMH no CneTTepy II MaBepy 3HePrHEI HpIIC-TanJIHYeCKAX PeIIleTOK COOTBeTCTBYIOUHX KpHCTaJIJIOB . 3HePrkIR aKTHBaUkiI1 np0-UeCCa pOCTa HaXOAIlTCH B na116onee RCHO BbIpaXeHHOfi JIHHefiHOfi 3aBEiCEiMOCTIl OT TaUHH a O H O B HBJIHBTCR KOHTPOJIIIPYH)II(AM 3TBnOM IIpOUeCCa POCTa KpHCTaJIJIOB I13 TennoT rHapaTaqm ~O H O B . TO ~O K ~~E J B ~~T , TO no Bcet BeposiTHocTn Aerunpapacmopa. rIoTsepmaeHHeM Tanoro B ~~J I F I A ~ IIBJIHEOTCFI EI AaHHbIe, nonpeaame np~1 HccaeaoBaHm cHopocTet pocTa rpaHet (111) II (100) KpmTannoB NaC10,.