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Standard XII

Chemistry

Depression in Freezing Point

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Question

A solution of urea (mol. mass 56g mol^-1) boils at 100.18°C under atmospheric pressure. If K_f and K_bfor water are 1.86 and 0.512 K kg mol^-1 respectively, the above solution will freeze at

- 6.54°C

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6.54°C

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0.654°C

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-0.654°C

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Solution

The correct option is D -0.654°C

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Q. A solution of urea (mol. mass 56 g mol

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_{f}

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respectively, the above solution will freeze at:

Q. A solution of urea (mol. mass 56

g m o l^{- 1}

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at the atmospheric pressure. If

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K k g . m o l^{- 1}

respectively, the above solution will freeze at:

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at the atmospheric pressure. If

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and

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respectively, the above solution will freeze at :

A solution of urea (mol. mass 56g mol^-1) boils at 100.18°C under atmospheric pressure. If K_f and K_bfor water are 1.86 and 0.512 K kg mol^-1 respectively, the above solution will freeze at

A solution of urea (molar mass 56 g/mol) boils at 100.18°C at the atmospheric pressure. If $K_{f}$ and $K_{b}$ of water are 1.86 and 0.52 K $k g m o l^{- 1}$ respectively, the above solution will freeze at

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A solution of urea (mol. mass 56g mol-1) boils at 100.18°C under atmospheric pressure. If Kf and Kb for water are 1.86 and 0.512 K kg mol-1 respectively, the above solution will freeze at

The correct option is D -0.654°C

A solution of urea (mol. mass 56g mol^-1) boils at 100.18°C under atmospheric pressure. If K_f and K_bfor water are 1.86 and 0.512 K kg mol^-1 respectively, the above solution will freeze at