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Chemistry Homework Help => CBSE XI and XII Chemistry => Topic started by: rajive on November 28, 2017, 03:47:48 AM

Title: chemical equilibrium q4
Post by: rajive on November 28, 2017, 03:47:48 AM
Q25d 27 and 29
Title: Re: chemical equilibrium q4
Post by: uma on December 04, 2017, 06:56:09 AM
D) Reverse reaction is decomposition reaction which needs heat.hence in D it is exothermic process .If you increase temperature it will shift equilibrium to left .
Title: Re: chemical equilibrium q4
Post by: uma on December 04, 2017, 07:00:45 AM
A and D are the one in which equilibrium does not shift. As volume reduces pressure increases and equilibrium shifts in the direction of low pressure.
Title: Re: chemical equilibrium q4
Post by: uma on December 04, 2017, 07:05:25 AM
29)
A and C are the answers
steam  is the part of equilibrium and hence increase of its pressure will shift the equilibrium on the product side  .
Reaction is endothermic so raising the temperature will shift to right.
however solids  in B) has no effect on K and D) increase in pressure will shift equilibrium in the direction of low pressure.
Title: Re: chemical equilibrium q4
Post by: rajive on December 04, 2017, 07:33:05 AM
for Q27 A part why would equilibrium shift if number of moles on both sides are same.
And for B part why would it not shift(the number of moles are different on both sides)
And why would it not shift for C part.
Title: Re: chemical equilibrium q4
Post by: uma on December 04, 2017, 07:43:48 AM
I said equilibrium will not shift  as both sides have same pressure.
I think there is error in teh question
in A and C there is no shifting this is what I have written.
Title: Re: chemical equilibrium q4
Post by: rajive on December 04, 2017, 08:40:56 AM
C part I wanted to know why there would be no shift
And for B and D the equilibrium wont shift. Am i right?
Title: Re: chemical equilibrium q4
Post by: uma on December 04, 2017, 09:05:30 AM
I am not sure which question are you talking about....
Title: Re: chemical equilibrium q4
Post by: rajive on December 04, 2017, 09:27:46 AM
Q27
Title: Re: chemical equilibrium q4
Post by: uma on December 04, 2017, 09:56:02 AM
27) A and D are the one in which equilibrium does not shift. As volume reduces pressure increases and equilibrium shifts in the direction of low pressure
Check my first answer ...
Title: Re: chemical equilibrium q4
Post by: rajive on December 04, 2017, 10:34:16 AM
Question asks in which equilibrium will not shift.