A 2.00 L flask at 298 K is charged with 0.200 mol of and no

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

Problem

A 2.00 L flask at 298 K is charged with 0.200 mol of

\mathrm{N_2O_4(g)}

and no

\mathrm{NO_2(g)}

. At equilibrium the flask contains 0.0400 mol of

\mathrm{N_2O_4}

. What is

K_{c}

for the reaction

\mathrm{N_2O_4(g) \rightleftharpoons 2NO_2(g)}

at this temperature? (a)

2.6

(b)

0.25

(c)

1.3

(d)

8.0

Related theory

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

Browse the problem library