12g of urea is dissolved in 1 litre of water a 68.4g of sucrose is dissolved in 1 litre of water The lowering of vapour pressure of first case is

Question

12g of urea is dissolved in 1 litre of water a 68.4g of sucrose is dissolved in 1 litre of water The lowering of vapour pressure of first case is

12g of urea is dissolved in 1 litre of water a 68.4g of sucrose is dissolved in 1 litre of water The lowering of vapour pressure of first case is
A. equal to second
B. greater than second
C. less than second
D. double that of second

Monjur Alahi

6 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
12g urea = 12/60 mol = 0.2 mol,
86.4g sucrose =68.4/342=0.2 mol.
As mole fraction of solute is same. Hence, lowering of V.P. is same .

6 views Answered 2023-02-05 15:29