Equilibrium Shifts When Adding B(g) to A+B System

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    Equilibrium System
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Discussion Overview

The discussion revolves around the effects of adding additional B(g) to a chemical equilibrium system represented by the reaction A(g) + B(g) ⇌ C(g). Participants explore how this addition influences the concentrations of the reactants and products at equilibrium.

Discussion Character

  • Homework-related, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant suggests that when additional B is added, the concentration of B should not decrease, while other concentrations may change.
  • Another participant argues that the decrease in A is necessary for the production of more C, indicating a relationship between the reactants and products in the equilibrium shift.
  • There is a discussion about the initial conditions of the system, with one participant highlighting a potential misunderstanding regarding the timing of the addition of B relative to the equilibrium state.

Areas of Agreement / Disagreement

Participants express differing views on how the addition of B affects the concentrations of A and C, indicating that there is no consensus on the effects of this change in the system.

Contextual Notes

There is an assumption about the initial conditions of the system that may not be fully articulated, which could affect the interpretation of the equilibrium shift.

disneychannel
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Homework Statement



What factors will change when additional B(g) is added to the following system at equilibrium.
Overall Reaction: A(g) + B(g) [itex]\Leftrightarrow[/itex](g)

The Attempt at a Solution



I said decreases, [A] decreases, [C] increases, and equilibrium will shift to the right...but i got it wrong...why and what would it be then?
 
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If additional B is added, the last thing I would posit is that B would decrease. Everything else you have seems correct.
 
then why would A decrease...
 
When more product is made, it requires A to do so. A decreases. I believe your actual difficulty is one of initial conditions. You've assumed that the initial conditions are at a point after the addition of extra B and before the new mixture comes to equilibrium but the question assumes it is before B is added.
It appears that you have a good grasp of the concept so relax and don't debate semantics. You'll get nowhere with that.
 
Okay! Thank You!
 

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