In a vessel containing `N_(2),H_(2)` and `NH_(3)` at equilibrium , some helium gas is introduced do that total pressure increase while temperature and volume ramain constant .According to Le Chatelier's principle , the dissociation of `NH_(3)`:
A
Increases
B
decreases
C
remains unltered
D
changes unpredictably
Text Solution
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The correct Answer is:
c
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