For a hypothetical reaction 4 A + 5 B ⇋ 4 P + 6 Q , The equilibrium constant K c has units Options: A . &nbsp m o l L − 1 B . &nbsp m o l − 1 L C . &nbsp ( m o l L − 1 ) − 2 D . &nbsp unit less

For a hypothetical reaction 4A + 5B⇋ 4P+6Q, The equilibr

Question -

For a hypothetical reaction
$4 A + 5 B ⇋ 4 P + 6 Q,$
The equilibrium constant $K_{c}$ has units

Options:

A .

m o l L^{- 1}

B .

m o l^{- 1} L

C .

(m o l L^{- 1})^{- 2}

D . unit less

Answer: Option A
:
A

K_{c} = [P]^{4} [Q]^{6} / ([A]^{4} [B]^{5}) = (m o l L^{- 1})^{10} / (m o l L^{- 1})^{9} / = m o l L^{- 1}

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