TS EAMCET 18-July-2022 Shift 1 Solved Paper

We have the equation π=iCRT . As urea is non-electrolyte, i=1,π is the osmotic pressure at temperature T .
π1‌=C1RT1
400‌=C1R×273K‌‌‌⋅⋅⋅⋅⋅⋅⋅(i)
π2‌=C2RT2
100‌=C2R×293K‌‌‌⋅⋅⋅⋅⋅⋅⋅(ii)
Dividing Eq. (i) by Eq. (ii),
‌‌

π1

π2

=‌

400

100

=‌

C1×273

C2×293

‌‌

C1

C2

=‌

400×293

100×273

=4.29
C1 is 4.29 times C2 . So, the dilution factor is 4.3.