Find the condition that shifts the following exothermic equilibrium towards the formation of NH₃:

N₂(g) + 3H₂(g) ⇌ 2NH₃(g) + heat

1. Increasing the concentration of NH₃
2. Decreasing the pressure
3. Decreasing the concentration of H₂
4. Increasing the pressure and decreasing the temperature

Subtopic:  Le Chatelier's principle |
 86%
Level 1: 80%+
AIPMT - 2014
Hints

What conditions favor the formation of 2XY₄(g) in the reaction X₂(g) + 4Y₂(g) ⇋ 2XY₄(g), considering that the enthalpy change (ΔH) is negative?

1.  Low pressure and low temperature

2.  High temperature and low pressure

3.  High pressure and low temperature

4.  High temperature and high pressure

Subtopic:  Le Chatelier's principle |
 79%
Level 2: 60%+
AIPMT - 2011
Hints