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NEET UG CHEMISTRY MCQ: THERMODYNAMICS

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For the gas phase reaction, PCl5(g)⇋PCl3(g)+Cl2(g)\mathrm{PC}{\mathrm{l}_5}\left( \mathrm{g} \right)\leftrightharpoons\mathrm{PC}{\mathrm{l}_3}\left( \mathrm{g} \right) + \mathrm{C}{\mathrm{l}_2}\left( \mathrm{g} \right) Which of the following conditions are correct?
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Correct option: A
∆H>0 and ∆S>0
Option A (∆H>0 and ∆S>0) is correct because the reaction is endothermic (bond breaking) and increases disorder (more gas molecules).

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