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

Options

A. `2SO_(2)(g)+O_(2)(g)rarr2SO_(3)(g)`
B. `C_(2)H_(4)(g)+H_(2)(g)rarrC_(2)H_(6)(g)`
C. `C(s,"graphite")+O_(2)(g)rarrCO_(2)(g)`
D. `3C_(2)H_(2)(g)rarrC_(6)H_(6)(l)`

Answer

D

Explanation

`Deltan_(g)=-ve," "DeltaS=-ve`
`(a)Deltan_(g)=-1" (b) "Deltan_(g)=-1`
`(c )Deltan_(g)=0" (d) "Deltan_(g)=-3`