JEE Main 2021 — Solutions Question with Solution
From: JEE Main 2021 (Online) 26th August Evening Shift
Question
83 g of ethylene glycol dissolved in 625 g of water. The freezing point of the solution is ____________ K. (Nearest integer)
[Use : Molal Freezing point depression constant of water = 1.86 K kg mol1]
Freezing Point of water = 273 K
Atomic masses : C : 12.0 u, O : 16.0 u, H : 1.0 u]
[Use : Molal Freezing point depression constant of water = 1.86 K kg mol1]
Freezing Point of water = 273 K
Atomic masses : C : 12.0 u, O : 16.0 u, H : 1.0 u]
Enter your answer
Show full solutionCorrect answer: 259
Correct answer
259
Step-by-step explanation
kf = 1.86 kg/mol
T = 273 K
solvent : H2O(625 g)
Solute : 83 g of ethylene glycol
Tf = kf m
K
T = 273 K
solvent : H2O(625 g)
Solute : 83 g of ethylene glycol
Tf = kf m
K
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