(0.05,M) \(CaCl_2\) विलयन का (300,K) पर परासरण दाब क्या होगा, यदि पूर्ण वियोजन हो और \(R=0.082,L,atm,mol^{-1},K^{-1}\)?
What is the osmotic pressure of a (0.05,M) \(CaCl_2\) solution at (300,K), assuming complete dissociation and \(R=0.082,L,atm,mol^{-1},K^{-1}\)?
Correct answer and explanation
C. (3.69,atm)
Concept
\(CaCl_2\) पूर्ण वियोजन पर तीन आयन देता है, इसलिए (i=3)। / \(CaCl_2\) gives three ions on complete dissociation, so (i=3).
Why this answer is correct
\(\pi=iCRT=3\times0.05\times0.082\times300=3.69,atm\)। / \(\pi=iCRT=3\times0.05\times0.082\times300=3.69,atm\).
Exam Tip
आयनिक विलयन में (i) लगाना न भूलें। / Do not forget (i) for ionic solutions.
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