In winter, the normal temperature in Dharmshala is `- 8^(@)` C Is a `30%` by mass of an aqueous solution of ethylene glycol (molar mass = 62) suitable for car radiator . `K_(f)` for water is 1 . 86 K/m

Explanation

Mass of cthylene glycol `W_B=30 g`, Mass of solution = 100 g
`:.` Mass of water = 100 - 30
= 70 g =0.07 kg
`DeltaT_f = K_fm ` [Depression in freezing point equation]
`:. DeltaT_f=K_fxxW_B/M_Bxx1/(W_A(kg))=1.86 xx30/62xx1/(0.07 kg)`
`DeltaT_f=12.86 K = 12.86^@C`
`:. T_f=T_f^@-DeltaT_f`
`=(0-12.86)^@C =-12 .86^@C`
Thus the solution will remain liquid at `-8^@C` in Dharmshala. The answer is yes.