Q.

CD: Fixed wall, EF : SPM, Fixed wall : allows the pressure transfer but no mass transfer. If 16 gm Helium present in ABCD chamber calculate the length of this chamber in cm if no osmosis takes place through SPM EF. Assume 75% ionization of K4Fe(CN)6.(R=0.0821L-atm/mol-R)

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answer is 5.

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Detailed Solution

i=1+(y−1)αi=1+(5−1)0.75π=iCRTπ=4×2×0.0821×300For He    PV = nRTπV=nRT2×0.0821×300×4×100×l×10−3=164×0.0821×300l=48×10−1=408=5 cm
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