Su'aalo Tusaale ah iyo Doodda Isle'egyada Heerka Falcelinta iyo Habka Falcelinta
Fahmidda iyo barashada heerarka falcelinta iyo amarrada falcelinta waa qayb muhiim ah oo ka mid ah daraasadda kinetics-ka kiimikada. Maqaalkan, waxaan ka hadli doonnaa fikradaha aasaasiga ah, waxaan soo bandhigi doonnaa masalooyinka tusaalaha ah, waxaanan soo bandhigi doonnaa dood ku saabsan isle'egyada heerka falcelinta iyo amarrada falcelinta.
Hordhac ku saabsan Heerka Falcelinta iyo Habka Falcelinta
Heerka falcelinta
Heerka falcelinta waa heerka isbeddelka ku yimaada isku-darka fal-celinta ama badeecada halkii waqti ee halbeeg. Isle'egyada heerka, waxaan inta badan ku aragnaa qaabka guud ee soo socda:
\[ \text{rate} = k \cdot [A]^m \cdot [B]^n \]
Halkee:
– \(\text{rate}\) waa heerka falcelinta.
– \(k\) waa heerka falcelinta joogtada ah.
– \([A]\) iyo \([B]\) waa isku-darka fal-galayaasha A iyo B.
– \(m\) iyo \(n\) waa heerarka falcelinta marka loo eego A iyo B.
Amarka Jawaab celinta
Nidaamka falgalka wuxuu qeexayaa inta uu le'eg yahay saameynta xoogga falgalka falgalka uu ku leeyahay heerka falgalka. Wadarta guud ee nidaamka falgalka falgalka waa wadarta dalabaadka falgal kasta.
Su'aalo Tusaale ah iyo Doodda Heerka Falcelinta iyo Habka Falcelinta
Su'aal Tusaale 1aad
Su'aal:
Falcelinta u dhaxaysa walaxda A iyo walaxda B waxaa lagu bixiyaa isla'egta kiimikada:
\[ A + 2B \midigta C \]
Waxaa la ogyahay in heerka falcelinta ee falcelintan uu yahay:
\[ \text{rate} = k \cdot [A]^2 \cdot [B] \]
1. Go'aami habka falcelinta marka loo eego A iyo B.
2. Go'aami wadarta guud ee falcelinta.
Dood:
1. Laga bilaabo isle'egta heerka \( \text{rate} = k \cdot [A]^2 \cdot [B] \), waxaan arki karnaa taas:
– Habka falcelinta marka loo eego A waa 2 (sababtoo ah jibaaranaha \([A]\) waa 2).
– Kala horraynta falgalka marka loo eego B waa 1 (sababtoo ah jibbaarka \([B]\) waa 1).
2. Wadarta guud ee falgalka waa wadarta amarrada falgal kasta:
– Wadarta dalabka = Dalabka A + Dalabka B = 2 + 1 = 3.
Su'aal Tusaale 2aad
Su'aal:
Tijaabo, xogta heerka falcelinta soo socota ayaa laga helay:
| [A] (mol/L) | [B] (mol/L) | Heerka falcelinta (mol/L s) |
|———-|———-|—————————–|
| 0.1 | 0.1 | 0.01 |
| 0.1 | 0.2 | 0.02 |
| 0.2 | 0.2 | 0.08 |
1. Go'aami nidaamka falcelinta ee falgalayaasha A iyo B.
2. Xisaabi heerka falcelinta joogtada ah (k).
Dood:
1. Si loo go'aamiyo habka falgalka, waxaan u baahanahay inaan eegno sida heerka falgalka isu beddelo marka isku-darka falgalayaasha la beddelo:
- Go'aami nidaamka falcelinta marka loo eego A:
Isbarbardhig tijaabooyinka 2 iyo 3:
– \([A]\) wuxuu ka kordhaa 0.1 M ilaa 0.2 M (labanlaab), halka \([B]\) uu weli yahay 0.2 M.
– Heerka falcelinta wuxuu ka kordhaa 0.02 mol/L s ilaa 0.08 mol/L s (afar laab).
Habka falcelinta ee ku saabsan A waxaa lagu go'aamin karaa isla'egta:
\[ \left(\frac{0.2}{0.1}\right)^m = \frac{0.08}{0.02} \]
\[ 2^m = 4 \]
\[ m = 2 \]
- Go'aami nidaamka falcelinta marka loo eego B:
Isbarbardhig tijaabooyinka 1 iyo 2:
– \([B]\) wuxuu ka kordhaa 0.1 M ilaa 0.2 M (labanlaab), halka \([A]\) uu weli yahay 0.1 M.
– Heerka falcelinta wuxuu ka kordhaa 0.01 mol/L s ilaa 0.02 mol/L s (labanlaabmay).
Habka falcelinta marka loo eego B waxaa lagu go'aamin karaa isla'egta:
\[ \left(\frac{0.2}{0.1}\right)^n = \frac{0.02}{0.01} \]
\[ 2^n = 2 \]
\[ n = 1 \]
2. Go'aami heerka falcelinta joogtada ah (k):
Isticmaal xogta mid ka mid ah tijaabooyinka (tusaale ahaan, tijaabada 1):
\[ \text{rate} = k \cdot [A]^2 \cdot [B] \]
\[ 0.01 = k \cdot (0.1)^2 \cdot 0.1 \]
\[ 0.01 = k \cdot 0.001 \]
\[ k = \frac{0.01}{0.001} = 10 \, \qoraalka{L}^2/(\qoraalka{mol}^2 \cdot \qoraalka{s}) \]
Su'aal Tusaale 3aad
Su'aal:
Falcelintu waxay raacdaa isleegta heerka soo socota:
\[ \text{rate} = k \cdot [A]^{1/2} \cdot [B]^2 \]
Haddii fiirsashada bilowga ah ee A iyo B ay yihiin 0.36 M iyo 0.2 M, siday u kala horreeyaan, waa maxay heerka falcelinta marka la eego xaaladdan haddii \( k = 5 \, \text{L}^{5/2} / (\text{mol}^{5/2} \cdot \text{s}) \)?
Dood:
Isticmaal isla'egta qiimaha la bixiyay:
\[ \text{rate} = k \cdot [A]^{1/2} \cdot [B]^2 \]
Geli qiimayaasha la bixiyay:
\[ \text{rate} = 5 \cdot (0.36)^{1/2} \cdot (0.2)^2 \]
Xisaabi qiimaha xoogga:
\[ (0.36)^{1/2} = 0.6 \]
\[ (0.2)^2 = 0.04 \]
Hadda, qiimahaas ku dheji isla'egta:
\[ \text{rate} = 5 \cdot 0.6 \cdot 0.04 \]
\[ \text{rate} = 5 \cdot 0.024 \]
\[ \text{rate} = 0.12 \, \text{mol/L\ s} \]
Heerka falcelinta ee heerkan waa 0.12 mol/L s.
Gabagabo
Isle'egta heerka falcelinta iyo nidaamka falcelinta waa fikradaha aasaasiga ah ee kinetics-ka kiimikada. Markaan fahanno sida fiirsashada fal-celinta ay u saamayso heerarka falcelinta, waxaan xisaabin karnaa heerka falcelinta oo aan go'aamin karnaa heerka joogtada ah. Maqaalkani wuxuu bixiyaa tusaale ahaan dhibaatooyin iyo xalal si loo caawiyo fahamka fikradahan. Faham wanaagsan oo ku saabsan mowduucyadan ayaa lagama maarmaan u ah codsiyada wax ku oolka ah ee shaybaarka kiimikada iyo hababka warshadaha.
Iyadoo la adeegsanayo ku celcelin joogto ah iyo falanqayn taxaddar leh, waxaan si fiican u fahmi karnaa sida loo go'aamiyo amarrada falcelinta iyo loo isticmaalo isle'egyada heerka xaaladaha kala duwan. Barasho wanaagsan!
