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# What are the units of Equilibrium equations $K_p$ and $K_c$ when $\Delta n_g < 0$ respectively ?

(a) $(atm)^{\Delta n_g} , (L mol^{-1})^{\Delta n_g}$

(b) $(atm)^{\Delta n_g} , (mol L^{-1})^{\Delta n_g}$

(c) $(atm) , (L)^{\Delta n_g}$

(d) $(atm) , (L mol^{-1})^{\Delta n_g}$

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## 1 Answer

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Toolbox:
• $K_p = K_c (RT)^{\Delta n_g}$

Answer: $(atm)^{\Delta n_g}$, $(L mol^{-1})^{\Delta n_g}$

According to the relationship between $K_p$ and $K_c$ when $\Delta n_g < 0,$

Units of $K_p$ are $(atm)^{\Delta n_g}$.

Units of $K_c$ are $(L mol^{-1})^{\Delta n_g}$.

answered Nov 15, 2013
edited Nov 23, 2013

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