For the gas phase reaction, PCl5(g) $\rightleftharpoons$ PCl3(g) + Cl2(g) which of the following conditions are correct ?

Question

For the gas phase reaction,

PCl_5(g) $\rightleftharpoons$ PCl_3(g) + Cl_2(g)

which of the following conditions are correct ?

$\Delta $H < 0 and $\Delta $S < 0

$\Delta $H > 0 and $\Delta $S < 0

$\Delta $H = 0 and $\Delta $S < 0

$\Delta $H > 0 and $\Delta $S > 0

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