Question

Equal volumes of 0.1M urea and 0.1 M glucose are mixed. The mixture will have :

• A. lower osmotic pressure than individual values of osmotic pressure
• B. higher osmotic pressure than individual values of osmotic pressure
• C. same osmotic pressure as the two individual values
• D. none of the above

Answer 1

Answer: (C)

same osmotic pressure as the two individual values

The mixture will have same osmotic pressure as the two individual values.
${\pi }_{urea}=0.1\times ST$

${\pi }_{glucose}=0.1\times ST$

${\pi }_{mix}=\frac{0.1ST+0.1ST}{2}$

$=0.1ST$