Equilibria chemistry
 

The Equilibrium Law

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Question 1 of 2

What is the expression for Kc for the equilibrium system N2(g) + 3H2(g)  2NH3(g)?

A

Expression for Kc is \inline \dpi{100} \large \textit{K}_\textup{c} = \frac{[\textup{N}_{2}][\textup{H}_{2}]}{[\textup{NH}_{3}]}

B

Expression for Kc is \inline \dpi{100} \large K_\textup{c} = \frac{[\textup{N}_{2}][\textup{H}_{2}]^{3}}{[\textup{NH}_{3}]^{2}}

C

Expression for Kc is \inline \dpi{100} \large K_\textup{c} = \frac{[\textup{NH}_{3}]}{[\textup{N}_{2}][\textup{H}_{2}]}

D

 Expression for Kc is \inline \dpi{100} \large K_\textup{c} = \frac{[\textup{NH}_{3}]^{2}}{[\textup{N}_{2}][\textup{H}_{2}]^{3}}

What is the equation for the equilbrium for which:

 \inline \dpi{100} \large Kc = \frac{[NO]^{2}[O_{2}]}{[NO_{2}]^{2}} 

A

NO + O2  NO2

B

2NO + O2  2NO2

C

2NO2  2NO + O2

D

NO2  NO + 1/2O2
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