Intensive properties are those that do not depend on the amount of substance, while extensive properties depend on the quantity of the substance.
The total number of intensive properties is:
\[ 4 \, \text{(Molar mass, Molar heat capacity, Molarity, and } E^\circ_{\text{cell}}). \]
The total number of intensive properties is 4.
Which one of the following graphs accurately represents the plot of partial pressure of CS₂ vs its mole fraction in a mixture of acetone and CS₂ at constant temperature?

In the given figure, the blocks $A$, $B$ and $C$ weigh $4\,\text{kg}$, $6\,\text{kg}$ and $8\,\text{kg}$ respectively. The coefficient of sliding friction between any two surfaces is $0.5$. The force $\vec{F}$ required to slide the block $C$ with constant speed is ___ N.
(Given: $g = 10\,\text{m s}^{-2}$) 