What would happen if a thin slice of sugar beet is placed in a concentrated solution of $NaCl$?

What is osmotic pressure? Explain and derive its equation.

Calculate the molar mass of a solute at $300 \ K$ if $400 \ mg$ of it is dissolved in $300 \ mL$ of water to exert an osmotic pressure of $0.2 \ atm$. $(R = 0.0821 \ L \ atm \ K^{-1} \ mol^{-1})$

$A$ solution containing $8.6 \ g$ of urea per liter is isotonic with a $0.5 \ \%$ (weight/volume) solution of a non-volatile organic solute. What is the molecular weight of the organic solute?

$18 \ g$ glucose (Molar mass $= 180 \ g/mol$) is dissolved in $100 \ mL$ of water at $300 \ K$. If $R = 0.0821 \ L \ atm \ K^{-1} \ mol^{-1}$,what is the osmotic pressure of the solution (in $atm$)?

The following solutions were prepared by dissolving $10 \ g$ of glucose $(C_{6}H_{12}O_{6})$ in $250 \ mL$ of water $(P_{1})$,$10 \ g$ of urea $(CH_{4}N_{2}O)$ in $250 \ mL$ of water $(P_{2})$,and $10 \ g$ of sucrose $(C_{12}H_{22}O_{11})$ in $250 \ mL$ of water $(P_{3})$. The right option for the decreasing order of osmotic pressure of these solutions is: