Which of the following statement (s) is /are true ?

Options

A. for any substance `DeltaS_(vap)^(@) gt DeltaS_(fusion )^(@)`
B. Greater amount of heat will be requried to dissociate ammmonia gas into nitrogen and hydrogrn gas at constant pressue condition at same temperature
C. The reaction having rate law `=K[A]^(2)[B]^(1)` will follow first order kinetics if concentration of `[B]` is kept constant .
D. Normally of `KMno_(4)` in alkaline medium may be either equally to molarity or may be three times molarity

Answer

a,b,d