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Question: Answered & Verified by Expert
If all symbols have their usual meaning, then for a non-volatile non-electrolyte solute \( \operatorname{Lt}_{\mathrm{m} \rightarrow 1}\left(\frac{\Delta \mathrm{T}_{\mathrm{f}}}{\mathrm{m}}\right) \) is equal to:
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Options:
  • A Zero
  • B Infinity
  • C \( \Delta \mathrm{T}_{f} \)
  • D \( \mathrm{K}_{f} \)
Solution:
2455 Upvotes Verified Answer
The correct answer is: \( \mathrm{K}_{f} \)
For a non-volatile non-electrolyte solute, depression in freezing point
Δ T f = K f m  or  Δ T f m = K f
Lt m 1 Δ T f m = K f

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