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# Qualitative Reasoning for Sign of $∆S_{rxn}$

CHEM-BTURDY

$ΔS$ is positive for which of the following reactions?

A

$CH_{ 3 }OH(l)→CH_{ 3 }OH(s)$

B

$CH_{ 4 }(g)+H_{ 2 }O(g)→CO(g)+3H_{ 2 }(g)$

C

$N_{ 2 }(g)+3H_{ 2 }(g)→2NH_{ 3 }(g)$

D

$Na_{ 2 }CO_{ 3 }(s)+H_{ 2 }O(g)+CO_{ 2 }(g)→2NaHCO_{ 3 }(s)$

E

$\text{All of the above reactions have a ∆S > 0.}$