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Asked by Suvarnawoonna | 17 May, 2019, 11:45: AM
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space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space 2 A space plus space B space rightwards arrow C space plus space D space space space space space K subscript c space equals space 10 to the power of 12 I n i t i a l space c o n c e n t r a t i o n s space left parenthesis M o l divided by L right parenthesis space space space space space space space 2 space space space space space space space 1 space space space space space space space 7 space space space space space space 3 E q u i l i b r i u m space C o n c e n t r a t i o n s space space space space space space space space space space 2 a space space space space space space a space space space space space space 8 space space space space space space space 4 space space space space S i n c e space t h e space v a l u e space o f space K subscript c space space i s space v e r y space h i g h space w e space a s s u m e space left parenthesis 1 minus a right parenthesis space equals space a space left parenthesis A p p r o x i m a t i o n right parenthesis a n d space c o n c e n t r t i o n s space o f space C space a n d space D space i n c r e a s e s space b y space a space v a l u e space o f space 1 space left parenthesis M o l e s space o f space A space a n d space B space a r e space i n space o r d e r space o f space t h e i r space s t o i c h i o m e t r i c space c o e f f i c i e n t s right parenthesis T h u s space w e space h a v e space K subscript c space equals space fraction numerator left square bracket C right square bracket left square bracket D right square bracket over denominator left square bracket A right square bracket squared left square bracket B right square bracket end fraction space equals space 10 to the power of 12 space equals space fraction numerator 4 cross times 8 over denominator 4 a squared space cross times space a end fraction equals space fraction numerator 32 over denominator 4 a cubed end fraction space equals 8 over a cubed o r comma space a cubed space equals space 8 cross times 10 to the power of negative 12 end exponent O r comma space a space equals space 2 cross times 10 to the power of negative 4 end exponent T h u s comma space bold italic e bold italic q bold italic u bold italic i bold italic l bold italic i bold italic b bold italic r bold italic i bold italic u bold italic m bold space bold italic c bold italic o bold italic n bold italic c bold italic e bold italic n bold italic t bold italic r bold italic a bold italic t bold italic i bold italic o bold italic n bold space bold italic o bold italic f bold space bold italic A bold space bold equals bold space bold 2 bold italic a bold space bold equals bold 4 bold cross times bold 10 to the power of bold minus bold 4 end exponent bold space bold left parenthesis bold italic o bold italic p bold italic t bold italic i bold italic o bold italic n bold space bold italic A bold space bold italic i bold italic s bold space bold italic c bold italic o bold italic r bold italic r bold italic e bold italic c bold italic t bold right parenthesis. space
Answered by Sumit Chakrapani | 17 May, 2019, 15:42: PM

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