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Elevation of boiling point is inversely proportional to :(A) molal elevation constant (Kb)(B) molality (m)(C) molar mass of solute (M)(D) weight of solute (W) |
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Answer» Option : (C) molar mass of solute (M) ΔTb = kbm or, ΔTb = kb\(\frac{W_1}{M\times W_2}\), Where Kb = molal elevation constant, m = molality or, ΔTb = kb\(\frac{W_1}{M\times W_2}\), Where W1 = mass of solute,W2 = mass of solvent, M = molar mass of solute. ∴ ΔTb ∝ \(\frac{1}{M}\) Therefore, Elevation of boiling point is inversely proportional to molar of solute (M). |
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