Class 11th

  $\Delta G=\Delta H-T\Delta S$

For spontaneity

$\begin{array}{l}\Delta G=-ve\\ \Delta S=+ve\\ \Delta H=-ve\end{array}$        

·   $\Delta S$ is a state function because its value depends only on the state of the system and not on how it is reached.

· Entropy is an extensive property because its value depends on the quantity of matter present in the system.

Kindly go through the solution

K_h = Kw/Ka = 2.22 x 10^-5

Total kinetic energy associated with 'n' moles of monoatomic gas is =   $\frac{3}{2}nRT$

NH₃ can be liquefied most easily due to presence of strong intermolecular H-bonding among NH₃ molecules.

2-chloro-4-methylanisole

Electron withdrawing group decreases the stability of carbocation.

Correct order of stability of carbocation is

  $N{H}_4^{+}$  does not have vacant orbitals, therefore it cannot behave as electrophile.

Percentage Br =   $\frac{80*0.094}{188*0.16}*100=25\mathrm{\%}$