InterviewSolution
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InterviewSolution
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Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at `-6^(@)C` will be `(K_(f)` for water `= 1.86 Kkg mol^(-1)`, and molar mass of ethylene glycol `=62 g mol^(-1))`A. 204.30gB. 400.00 gC. 304.60 gD. 800.00 g |
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Answer» Correct Answer - D `Delta T_(f) xx (1000K_(f) xx W_(2))/(M_(2) xx W_(1))` `:. 6 = (1000 xx 1.86 xx W_(2))/(4000 xx 62)` or `W_(2) = 800g` |
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