What approximate proportions by volume of water and ethylene glycol (d=1 12g/cc) must be mixed to ensure protection of an - Chemistry - Solutions

Question

What approximate proportions by volume of water and ethylene glycol
(d=1 12g/cc) must be mixed to ensure protection of an automobile
cooling system to -10*C?

Geetha · Accepted Answer

According to depression of freezong point,∆T = Kf m m = ∆T1
86W2M × W1 =101
86 W262 × 1 =101
86W2 = 10 × 62 × 11
86 = 333
33 gSo for 1000 g of water 333
33 g of ethylene glycol is neededFor 1000 ml of water 333
331 12 = 297
62 g neededSo the amount of ethylene glycol is 297
62 g for 1000 ml of water

What approximate proportions by volume of water and ethylene glycol (d=1.12g/cc) must be mixed to ensure protection of an automobile cooling system to -10*C?