Equilibrium Question 728

Question: For the reaction equilibrium; N2O4(g)⇋2NO2(g) ; the concentration of N2O4 and NO2 at equilibrium are 4.8×10−2 and 1.2×10−2 mol/L respectively. The value of KC for the reaction is:

Options:

A) 3×10−3M

B) 3×103M

C) 3.3×102M

D) 3×10−1M

Show Answer

Answer:

Correct Answer: A

Solution:

KC=[NO2]2[N2O4]=(1.2×10−2)24.8×10−2=3.0×10−3M

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