1 / 5

Llei de Raoult

Llei de Raoult. 1 + 2. 1 + 2. P = P 1 + P 2. P 1 *. P 2 *. P 1. P 2. 1. x 1. 0. 0. x 2. 1. Pressió. CH 3 CH 2 CH 2 OH +CH 3 CH 2 OHCH 3. Composició. CH 3 Ph-CH 3 (orto/para). Comportament real. acetona-dissolvent cloroform-solut. Raoult. P(ac)=P*(ac) * x(ac). Raoult.

kimn
Download Presentation

Llei de Raoult

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Llei de Raoult 1 + 2 1 + 2 P=P1+P2 P1* P2* P1 P2 1 x1 0 0 x2 1 Pressió CH3CH2CH2OH +CH3CH2OHCH3 Composició CH3Ph-CH3 (orto/para)

  2. Comportament real acetona-dissolvent cloroform-solut Raoult P(ac)=P*(ac)*x(ac) Raoult K(cl) P(cl)=K(cl)*x(cl) Henry Acetona+cloroform P*(ac) P*(cl) x(acetona)

  3. Etanol+aigua Raoult Dissolució diluïda ideal Henry Desviacions importants

  4. Propietats col·ligatives P L Dissolució S V Augment ebulloscòpic: DTe=Te-Te* Descens crioscòpic: DTc=Tc-Tc* Descens de la Pv Dissolvent pur

  5. Propietats col·ligatives P P Temps inicial, estat de no equilibri p=r·g·h h P P+p Temps final, estat d’equilibri Pressió osmòtica I Dissolvent (1) II Dissolució (1+2)

More Related