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A) The equilibrium constant, Kc, for the following reaction is 2.66×10-3 at 665 K. NH4I(s)   NH3(g)...

A) The equilibrium constant, Kc, for the following reaction is 2.66×10-3 at 665 K.

NH4I(s)   NH3(g) +  HI(g)


Calculate Kc at this temperature for the following reaction:

NH3(g) +  HI(g)   NH4I(s)

Kc =  

B) A student ran the following reaction in the laboratory at 285 K:

2CH2Cl2(g)   CH4(g) + CCl4(g)  

When she introduced 7.52×10-2 moles of CH2Cl2(g) into a 1.00 liter container, she found the equilibrium concentration of CCl4(g) to be 3.50×10-2 M.  

Calculate the equilibrium constant, Kc, she obtained for this reaction.  

Kc =

C) Consider the following reaction:

2CH2Cl2(g)   CH4(g) + CCl4(g)

If 0.215 moles of CH2Cl2(g), 0.550 moles of CH4, and 0.266 moles of CCl4 are at equilibrium in a 13.1 L container at 430 K, the value of the equilibrium constant, Kc, is _____.

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