Om na
Question 2
At a temperature of 400 K a mixture consisting of
0,25 mol NO and 0,10 mol Br2 is placed into a
ow. 250 cm® container. A reaction takes place in the
sealed container according to the following equation:
2NO(g) + Br2(g) + 2NOBr(g) AH < 0
Equilibrium is reached after ten minutes.
At equilibrium the NO concentration is 0,8 mol-dm.
21 Calculate the equilibrium constant for
this reaction.
22 If a container of volume 1 dm is used
(instead of 250 cm”), what effect would it have
on the value of Kc?
23 At equilibrium, an amount of Bra is introduced
into the 250 cm container. What effect will this
change have on... (write only increases,
decreases or stays the same)
2. 3.1 the equilibrium constant
2.3.2 the concentration of NO
2.3.3 the rate of the reverse reaction after the
equilibrium has been re-established.​