TABLE 15.2 Variation in K, with Temperature for N2 + 3 H2 = 2 NH3 Temperature (°C) K, 300 4.34 x 10-3 400 1.64 x 104 450 4.51 x 10-5 500 1.45 x 10-5 550 5.38 x 106 600 2.25 x 106

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As shown in Table , the equilibrium constant
for the react ion N2(g) + 3 H2(g) ⇌ 2 NH3(g) i s
Kp = 4.34 x 10-3 at 300 °C. Pure NH3 is placed in a 1.00-L
flask and allowed to reach equilibrium at this temperature.
There are 1.05 g NH3 in the equilibrium mixture.
(a) What are the masses of N2 and H2 in the equilibrium
mixture? (b) What was the initial mass of ammonia placed
in the vessel? (c) What is the total pressure in the vessel?

TABLE 15.2 Variation in
K, with Temperature for
N2 + 3 H2 = 2 NH3
Temperature (°C)
K,
300
4.34 x 10-3
400
1.64 x 104
450
4.51 x 10-5
500
1.45 x 10-5
550
5.38 x 106
600
2.25 x 106
Transcribed Image Text:TABLE 15.2 Variation in K, with Temperature for N2 + 3 H2 = 2 NH3 Temperature (°C) K, 300 4.34 x 10-3 400 1.64 x 104 450 4.51 x 10-5 500 1.45 x 10-5 550 5.38 x 106 600 2.25 x 106
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