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

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

Question

For a hypothetical reaction

4 A + 5 B ⇋ 4 P + 6 Q,

The equilibrium constant

K_{c}

has units

Options:

A . molL−1

B . mol−1L

C . (molL−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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