12.0 g urea is dissolved in 1 litre of water and 68.4 g sucrose is dissolved in 1 litre of water. The relative lowering of vapour pressure of urea solution is

Options

A. greater than sucrose solution
B. less than sucrose solution
C. double that of sucorse solution
D. equal to that of sucrose solution.

Explanation

To solve the problem of finding the relative lowering of vapor pressure (RLVP) of the urea solution, we can follow these steps:

### Step 1: Understand the Concept of Relative Lowering of Vapor Pressure
Relative lowering of vapor pressure is a colligative property that depends on the number of solute particles in a solution. It is defined as the decrease in vapor pressure of the solvent when a solute is added.

### Step 2: Calculate the Number of Moles of Urea
To find the number of moles of urea, we use the formula:
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