Question

Which of the following reactions is associated with the most negative change in entropy?

• A. $2 SO _{2}( g )+ O _{2}( g ) \longrightarrow 2 SO _{3}( g )$
• B. $C _{2} H _{4}( g )+ H _{2}( g ) \longrightarrow C _{2} H _{6}( g )$
• C. $C ( s$, graphite $)+ O _{2} \longrightarrow CO _{2}( g )$
• D. $3 C _{2} H _{2}( g ) \longrightarrow C _{6} H _{6}( g )$

Answer 1

Answer: (D)

$\Delta n _{ g }$ is most - ve