chalte chalte depreesion in freezing point

the depression in freezing point (for the same amount of each) is:

acetic acid<trichloroacetic acid<trifluoroacetic acid...explain

NCERT Class XII part 1 pg. 61 q)2.31

5 Answers

1
TANAY ·

dep in fpt depends on Kf of solvnt whch depnds on nature of solvnt.

guess its corrct

1
TANAY ·

whts d ans?

13
Avik ·

"i" depends on the Degree of dissociation.

TriFluoro one will ionise the MaX. 'coz of the stabilisation of the -ve charge acquired,, due to gr8test -I effect.

1
Grandmaster ·

correct avik....
actually for monoprotic acid like acetic acid and its derivatives...
i=1+(alpha)

hence (alpha) proportional to acidic character proportional to depression in freezing point.....(it can be any colligative property!!!)

1
Manmay kumar Mohanty ·

yup since ΔTf = Kf mi
i = vant hoff's factor , m = molality , Kf to aaap jante hi hoge
and i =[1 + (y-1)x] where x is degree of dissociation and y is the no. of product molecules yield by 1 mole of reactant [1]

Your Answer

Close [X]