Q.

For the reaction,H2(g)+I2(g)⇌2HI(g);KC=57.0 at 700 K. The  molar concentration of H2 =0.10M,I2 =0.20M  and [HI] =0.40M. Calculate the reaction quotient, QC of the reaction.

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a

10.0

b

7 .0

c

8.0

d

12.0

answer is C.

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Detailed Solution

Consider the gaseous reaction of H2 with I2. H2(g)+I2(g)⇌2HI(g) ; KC=57.0 at 700 KQC=[HI] 2H2 I2 =(0.40)2(0.10)×(0.20)=8.0
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