 औलके बात हैं जीभा उन्श्यतर बाता में लुगते लूड़ा, welcome to Mr. K. लोगे बाता मैं उन्श्यतर, एक समसे चीरपलिक तो प्रहीं, और उन्श्यतर बाता जासके है प्रहीं, यह वरे दी दीमासे, बहुर कमने थो हंदीशन लोelas. भाँ गराद़़रंग थो गब आफ गे रहा हैं। टीब बीज़ के ईसिट के पास तो ठग दो अचिड़़न तन हैं अच स्कर में जब जम आप ययक नहीं कि सोफीट लेग सब दीब रहा है ये पहला जो एक अह्च्रिय बिश्ढेंच भी में आप रहा है यीवॉकर सर एक तो, ड्र के आनक तलएए है. जीशक. तो, तो वोत्rue करमेग, आनकार, या सता इजई تمाग औस वप कौत oluyor skein. यह थी कनऊटरता मुलने की रनाती यर मुलनेःdisяти ख़नकेंट और सुरकोनेशactic-零्सर मुलनेः ये घी hammercard दी दीिज यी दीजाम की रनाते ह drivenker meiner किननाMEONG Solutions धो काहушा Direction transcription then भी।ंर मैंयळों कोनसक से साथ फ़ोंमाशा। दृराएंग से।ु क्रच poles like i told you that this and this are not different the moment the C alpha 1 is written ,the C alpha 1 is written over here whole is H minus and whole is C alpha 1 and A2 minus 0 and now it will also dissociate the C alpha 1 is the concentration and the H is dissociate so we will assume the second dissociation constant concentration of h plus into concentration of h a minus divided by concentration of h 2 a. So, your k a 1 nikal ke airal usto was c alpha 1 multiplied by c alpha 1 1 plus alpha 2 hai. Ye aap khutse kar ke dikhle jaya to better raha hai raha isme calculation wise c into 1 minus alpha 1. Okay. Dhusre me idiom constant k a 2 likhenge. Ye aap raha aap khutse to c alpha 1 alpha 2 c alpha 1 1 plus alpha 2 mai iss tisko c alpha 1 into 1 plus alpha 2 likhra hoon divided by c alpha 1 1 minus alpha 2. Okay. To iss tarah se apne pas do equation a a equation ye hai aur a equation ye hai. All right. Aap yaha par aap dekhpare hoonge ki aapko bus alpha 1 and alpha 2 ki value chahi hai. Right. Aga ba 2 equation hai aur alpha 1 alpha 2 2 variable hai. So, solve ka liji aapko ansa mil jayaega. Lekin yaha par hame khutse common tricks use karne hi hoti hai, ionic equilibrium mein. Just to make the calculation simpler. Okay. Jaisa ki mai agar bolu yaha pe ki 1 lakh agar mai pras 1 lakh amount hai plus 0.0001. Amma issko add karne ki yaha pe koi jarot nahi hai. Kyunki ye ju number issi kaafi kum hai to mai issko ignore kar satta hoon. Right. To ye roughly 1 lakh hi hoonga. Okay. Usi tarah se hame log yaha par kuch assumption leinge aur jee jay approximate karne ki koshish karenge. Ta ki, hame rhi jo calculation hai wo simplify hoja hai. Aap jo problem bachche face kartein iss chapter mein, wo ye hota hai ki kahi pe bhi likha nahi hota hai ki aapko approximation karna hai. Ye assumed hota hai. Assumed kaise hota hai. Bhai agar mai nahi aapko jase bol diya. For example, physics mein young double experiment hai. Usme aap assume kar lete ho ki jo 2 slits se raise aaree hai, wo parallel hai aur capital D kyunki bohta bada hai. Wo alak se likha nahi ritha hai. Ishi tarah se dosto iss yaha par jabhi bhi likhenge hain weak acid ya weak diabasic acid. Iska kuch assumption uske saath, wo kyunki wo weak acid hai uske saath wo automatically aajata hai. Okay. Aap yaha par dosto agar aap reaction dekhenge, yaha pa jau aap reaction dekhenge to clearly yaha pa ye make out kar pa rahe onge ki ye jo H2O hai. H2A hai. Ye easy dissociate ho jayega. Alaki weak hai. Kuru kaise dissociate nahi ho gha. Lekhen comparative to HA minus. Ye aarang se dissociate ho gha. Lekhen HA minus apne h-plus nikalne mein isko boht dikhat ho ghi. Kyunki khud bhi ek negative charge hai aur negative charge chahega ki mai neutralize ho jau. Lekhen yaha pa h-plus onge nikalne mein, to wo A2 minus ho gya. Right? To naturally KA2 joh hai KA1 se kaafi kum ho gha aise hi. Aur to aur dosto ye jo h-plus aayega ye common ion effect show karega. Yehani ki iska jo concentration hai. Kyuki ye h-plus common hai dono reaction mein. To agar mein issa concentration badahtha leta ho, to reaction piche ki taro bhage ki. To pehle hi kA2 itna kum hai aur common ion bhi hai yaha pa uski wajay se jo ye iss reaction ki wajay se jo h-plus bane gha. Duso ye hai reaction ki wajay se jo h-plus bane gha boht kum ho gha. Ok. To isli hai main ke chalti hai ki a2 hai it's very, very less. Ok. So a2 boht kum hai. A2 is close to zero. So 1 minus a2 is roughly equal to 1. 1 plus a2 this is also roughly close to 1. Ok. Aur yaha pa ek step aage bdke kyuki ye weak acid hai. Khitna bhi...mehla, pehla jo reaction hai. Khitna bhi tej kye ho nahon. Duso re wale reaction se. But fir bhi hai to ye weak acid hi. To hum log yaha pa ye mange chalti hai ki a1 jo hai wo less than 0.1 hai. Aur agar nahi hai to hum ko pata lag jaye gha. A1 agar less than 0.1 hai to hum log licksate hai. 1 minus a1 is also close to 1. And 1 plus a1 is also close to 1. Aur yaha pa abdekhin ke dheer saar approximation hai. Ye aapko basically yaad rakhne humge to yaha pa aur koi upaya apke paas nahi hai. So ka1 yaha pa ye aaya. C aur C chala jaya dosto. Aur abdekhin ke ka1 seerhe seerhe yaha pa nikal aata hai. C a1 square. Aur jo ka2 ki value hai dosto. Yaha pa abdekhin ke c a1 c a1 gaya. 1 minus a2 1 ho gaya. 1 plus a2 1 ho gaya. To ka1 ka2 sorry ho gaya. 1 minus a1 1 kya baatu so to. Aur aapya anta a2 a1 a2 a2. Ok, abin doonu equation. Abdekhin ke aap bohati simple ho gaya equation. Haala gaya aapne qape jada approximation ki hai. But ye valid approximation hai. Kuki hum ek vik aiseer ke baare baat kar rahe hain. A1 mein aap demate kar sakta hiye ki ye bhai 0.1 seerhe thonasa bada ho gaya to kya ho gaa. Bada ho gaya to aap 1 minus a1, 1 ke baata pa nahi licksate hai. 1 plus a1 bhi 1 ke baata pa nahi licksate hai. Toape ye aprosimation valid nahi rahe hain. like this, you can take concentration of E2- । । and you can take Ph also ok so thanks for watching the video । I am thinking of making short video । And I will keep making different videos । for different concept videos । Thank you