JEE PYQ: Solutions And Colligative Properties Question 9
Question 9 - 2021 (25 Feb Shift 1)
1 molal aqueous solution of an electrolyte $\text{A}_2\text{B}_3$ is 60% ionised. The boiling point of the solution at 1 atm is ____ K.
[Given: $K_b$ for $\text{H}_2\text{O} = 0.52$ K kg mol$^{-1}$]
Show Answer
Answer: 375
Solution
$i = 1 + (5-1) \times 0.6 = 3.4$. $\Delta T_b = 0.52 \times 1 \times 3.4 = 1.768°C$. $(T_b)_{\text{solution}} = 101.768°C = 375$ K.
BETA
