Answer to Question #76177 in Physical Chemistry for Lachy

Question

For the reaction system 2NH3(g) ⇌ N2(g) + 3H2(g) at equilibrium, ΔH is 92 kJ. In order to increase the value of K for this reaction, we would

1. increase the temperature

2. decrease the temperature

3. increase the pressure

4. decrease the pressure

A) 1 only
B) 2 only
C) 1 and 3 only
D) 2 and 3 only
E) 2 and 4 only

Answer 1

Solution:
P*V/T = const;
decrease the temperature and increase the pressure = increase the value of K.
D) 2 and 3 only.
Answer: D) 2 and 3 only.