Equilibrium Question 634

Question: At a certain temp. 2HI ⇌ H2 + I2 Only 50% HI is dissociated at equilibrium. The equilibrium constant is [DCE 1999]

Options:

A) 0.25

B) 1.0

C) 3.0

D) 0.50

Show Answer

Answer:

Correct Answer: A

Solution:

2HI100,50,H2025,+I20,25,

[H2][I2][HI]2=25×2550×50=0.25 .



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