एक विलयन में \( \Delta T_b = 0.78\) और \(K_b = 0.52\) है। अवियोजित विलेय की मोललता क्या होगी?
In a solution, \( \Delta T_b = 0.78\) and \(K_b = 0.52\). What is the molality of the non-dissociating solute?
Explanation opens after your attempt
B. (1.5)
Concept
\( \Delta T_b = K_b m \) से \(m = \frac{\Delta T_b}{K_b}\) होगा। / From \( \Delta T_b = K_b m \), \(m = \frac{\Delta T_b}{K_b}\).
Why this answer is correct
\(m = \frac{0.78}{0.52} = 1.5\) मिलता है। / \(m = \frac{0.78}{0.52} = 1.5\).
Exam Tip
क्वथनांक उन्नयन में \(K_b\) ही प्रयोग करें, \(K_f\) नहीं। / Use \(K_b\) for boiling point elevation, not \(K_f\).
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