What will be the freezing point of a 0.5 m KCl solution ? The molal freezing point constant of water is `1.86^@C m^(-1)` .
What will be the freezing point of a 0.5 m KCl solution ? The molal freezing point constant of water is `1.86^@C m^(-1)` .
A. `-1.86^@C`
B. `-0.372^@C`
C. `-3.2^@C`
D. `0^@C`
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Correct Answer - A
`DeltaT_f=iK_fxxm=2xx1.86xx0.5=1.86^@C`
`T_f=T_f^@-DeltaT_f=0-1.86=-1.86^@C`
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