COMEDK · Chemistry · 17. Solutions
\(6 \mathrm{~g}\) of urea is dissolved in \(90 \mathrm{~g}\) of water. Relative lowering of vapour pressure is
- A \(0.02\)
- B \(0.2\)
- C \(0.002\)
- D \(0.04\)
Answer & Solution
Correct Answer
(A) \(0.02\)
Step-by-step Solution
Detailed explanation
\(\frac{p^{\circ}-p_{\mathrm{S}}}{p^{\circ}}=\frac{w_{2} M_{1}}{M_{2} w_{1}}\) Where, \(w_{2}\) and \(M_{2}\) are weight and molecular mass of solute. \(M_{1}\) and \(w_{1}\) are molecular mass and weight of solvent.…
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