Use the References to access important values if needed for this question. Consider the following equilibrium system: \[ \mathrm{ACl}_{5}(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \] decomposition of \( \mathrm{PCl}_{5} \) gas takes place to an appreciable extent. When equilibrium is established, the total pressure in the flask is \( \mathbf{2 . 4 3 3} \) atm.

12 A 60 kg ice-skater, travelling initially at \( 3.0 \mathrm{~m} / \mathrm{s} \), glides across a horizontal icy surface. The skater brakes and comes to rest after 5.0 m . The work done against the braking force is the change in the kinetic energy of the skater. What is the braking force? 18 N A 27 N

How will we dentify the no. of \( (n) \) in \( (4 n+2) \) re For huckle rule?

Let \( h(x)=\frac{1}{4 x+1} \) and \( g(x)=\frac{1}{x} \), find \( g(h(x)) \)

ของ \( \frac{x^{n} y^{3}}{(-x)^{3}(2 y)^{m}} \) คือข้อใด

The degree of the polynomial function \( f(x) \) is 3 . The roots of the equation \( f(x)=0 \) are \( -2,0 \), and 3 Which graph could be the graph of \( f(x) \) ?