Identify the molecule for which the enthalpy of atomisation ( $\Delta_a H^{\ominus}$ ) and bond dissociation enthalpy $\left(\Delta_{\text {bond }} H^{\ominus}\right)$ are not equal

Given below are two statements :

Statement I For isothermal irreversible change of an ideal gas, $q=-w=p_{\text {ext }}\left(V_{\text {final }}-V_{\text {initial }}\right)$

Statement II For adiabatic change, $\Delta U=w_{\text {adiabatic }}$

The correct answer is :

A thermodynamic process $(B \rightarrow E)$ was completed as shown below. The work done is equal to area under the limits

At 300 K for the reaction. $A \rightarrow P$. The $\Delta S_p$ is $5 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}$, What is the heat absorbed (in kJ $\mathrm{mol}^{-1}$ ) by the system?