Q. 64.2( 5 Votes )

Calculate the fre

Answer :

We know

ΔT f= k f × m


Where ΔTf is the depression in the freezing point


Kf freezing constant for water


m is molality


The molality(m) of a given solution of glucose:



M=1.33 mol kg-1


Putting the values in the equation, we get


ΔTf= 1.86 × 1.33K


ΔT f= 2.4738K


ΔT f = T f × 2.4738K


Δt(solution) = t(solvent) ΔTf


ΔT f= Tf0 2.4738K


= 273.15 - 2.4738K


= 270.65K


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