Question

For the homogeneous reaction,
$4N{H}_3+5O_2\rightleftharpoons 4NO+6H_{2}O$

The equilibrium constant $K_c$ has the units:

• A. ${Conc.}^{+10}$
• B. ${Conc.}^{+1}$
• C. ${Conc.}^{-1}$
• D. It is dimensionless

Answer 1

The correct option is B ${Conc.}^{+1}$

For the homogeneous reaction,

$4N{H}_3+5O_2\rightleftharpoons 4NO+6H_{2}O$ the equilibrium constant, $K_c$ has the units

$Conc{.}^{\Delta n}=Conc{.}^{(4+6)-(4+5)}=Conc{.}^{+1}$