• # question_answer ) For the gas phase reaction, $PC{{l}_{5}}(g)\rightleftharpoons PC{{l}_{3}}(g)+C{{l}_{2}}(g)$ Which of the following conditions are correct? A) $\Delta H>0$and $\Delta S>0$B) $\Delta H<0$and$\Delta S<0$C) $\Delta H>0$and$\Delta S<0$D) $\Delta H=0$and$\Delta S<0$

$\Delta H=+ve$and $\Delta S=+ve.$The disorder increases with increase in moles. $PC{{l}_{5}}\rightleftharpoons PC{{l}_{3}}+C{{l}_{2}};\Delta \Eta =+ve$(dissociation)