{"version":"1.0","provider_name":"Diana lapja","provider_url":"https:\/\/ahimsa.cafeblog.hu","author_name":"DianaLap","author_url":"https:\/\/ahimsa.cafeblog.hu\/author\/dianalap\/","title":"6. K\u00cdS\u00c9RLET","html":"<p><a href=\"https:\/\/ahimsa.cafeblog.hu\/files\/2021\/03\/6.-K\u00cdS\u00c9RLET.png\"><img class=\"alignnone size-full wp-image-1029\" src=\"https:\/\/ahimsa.cafeblog.hu\/files\/2021\/03\/6.-K\u00cdS\u00c9RLET.png\" alt=\"\" width=\"923\" height=\"307\" \/><\/a><\/p>\r\n<p><a href=\"http:\/\/kemia.fazekas.hu\/Anyagok\/erettsegi\/kiserletek_emelt_erettsegi.pdf\">FORR\u00c1S: kiserletek_emelt_erettsegi.pdf (fazekas.hu)<\/a><\/p>\r\n<p><strong>Magyar\u00e1zat:<\/strong><br \/>Mindh\u00e1rom vegy\u00fclet ionr\u00e1csos, v\u00edzben old\u00f3d\u00f3 anyag<br \/>NaOH(sz) \u2192 Na+(aq) + OH\u2013(aq)\u00a0 \u00a0 \u00a0 \u00a0Qold(NaOH) = \u201342 kJ\/mol<br \/>NaCl(sz) \u2192 Na+(aq) + Cl\u2013(aq)\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Qold(NaCl) = +4 kJ\/mol<br \/>KNO3(sz) \u2192 K+(aq) + NO3\u2013\u00a0\u00a0(aq)\u00a0 \u00a0 \u00a0 Qold(KNO3) = +35 kJ\/mol<\/p>\r\n<p><br \/>Old\u00f3d\u00e1suk sor\u00e1n az ionr\u00e1csnak sz\u00e9t kell esnie, f\u00f6l kell bomlania az ionk\u00f6t\u00e9snek<br \/>\u2192 ehhez energi\u00e1ra van sz\u00fcks\u00e9g, ez a r\u00e1csenergia<br \/>Ezzel egyidej\u0171leg a l\u00e9trej\u00f6v\u0151 szabad ionok k\u00f6r\u00fcl hidr\u00e1tburok k\u00e9pz\u0151dik, ez a folyamat a hidrat\u00e1ci\u00f3<br \/>\u2192 a m\u00e1sodrend\u0171 (ion-dip\u00f3lus) k\u00f6t\u00e9sek kialakul\u00e1s\u00e1val energia szabadul fel, ez a hidrat\u00e1ci\u00f3s energia<br \/>A r\u00e1csenergia endoterm, a hidrat\u00e1ci\u00f3 exoterm folyamat. Az \u00f6ssz\u00e9rt\u00e9k, az old\u00e1sh\u0151 e k\u00e9t t\u00e9nyez\u0151t\u0151l f\u00fcgg:<br \/>Qold = Er\u00e1cs + \u03a3Ehidr<br \/>\u2192 A NaOH r\u00e1csenergi\u00e1j\u00e1nak nagys\u00e1ga kisebb ionjai hidrat\u00e1ci\u00f3s energi\u00e1i \u00f6sszeg\u00e9nek abszol\u00fat <br \/>\u00e9rt\u00e9k\u00e9n\u00e9l, azaz az old\u00e1sh\u0151 negat\u00edv \/ exoterm<br \/>\u2192 A NaClr\u00e1csenergi\u00e1ja \u00f6sszem\u00e9rhet\u0151 a hidrat\u00e1ci\u00f3s energi\u00e1k \u00f6sszeg\u00e9nek abszol\u00fat \u00e9rt\u00e9k\u00e9vel (kicsit <br \/>nagyobb), azaz az old\u00e1sh\u0151 gyakorlatilag autoterm (elvileg kiss\u00e9 pozit\u00edv \/ endoterm)<br \/>\u2192 A KNO3 r\u00e1csenergi\u00e1j\u00e1nak nagys\u00e1ga nagyobb ionjai hidrat\u00e1ci\u00f3s energi\u00e1i \u00f6sszeg\u00e9nek abszol\u00fat<br \/>\u00e9rt\u00e9k\u00e9n\u00e9l, teh\u00e1t az old\u00e1sh\u0151 pozit\u00edv \/ endoterm<\/p>","type":"rich"}