Initially, a 5.00 L container at a fixed temperature holds 0.800 mol of and 0.500 mol…

CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

Initially, a 5.00 L container at a fixed temperature holds 0.800 mol of

\mathrm{SO_2(g)}

and 0.500 mol of

\mathrm{O_2(g)}

. After the system reaches equilibrium, 0.300 mol of

\mathrm{SO_3(g)}

is present. What is the value of

K_{c}

for the reaction

\mathrm{2SO_2(g) + O_2(g) \rightleftharpoons 2SO_3(g)}

under these conditions? (a)

9.0

(b)

5.1

(c)

1.4

(d)

32

Related theory

Law of Mass Action
Chemical Equilibrium
Equilibrium
Equilibrium constant calculations
Equilibrium Constant

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