Are These Answers Correct for Chemical Equilibrium Questions?

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Discussion Overview

The discussion revolves around chemical equilibrium questions, focusing on the correctness of answers provided by participants regarding specific statements about equilibrium systems and their properties. The scope includes conceptual understanding and reasoning related to chemical equilibrium principles.

Discussion Character

  • Homework-related
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Post 1 suggests that the answer to the first question is (b), indicating that a chemical system in equilibrium has a specific ratio of product to reactant concentrations, while also noting that (a) depends on whether the reaction is exothermic or endothermic.
  • Post 1 proposes that (a) is the false statement in the second question, arguing that a very large equilibrium constant does not necessarily imply a fast reaction.
  • Post 2 agrees with Post 1's assessment of question 1, stating that both (b) and (d) seem valid, with (b) being more assured.
  • Post 2 reiterates the distinction between stability and reaction rate, supporting the choice of (a) as the false statement in question 2.
  • Post 3 expresses confidence in their correctness regarding all answers, suggesting a sense of closure to the discussion.
  • Post 4 echoes the sentiments of Post 2, affirming the reasoning presented and adding a note about acid-base neutralization reactions typically occurring quickly with large equilibrium constants.

Areas of Agreement / Disagreement

Participants generally agree on the validity of answers (b) and (d) for the first question and the choice of (a) as false for the second question. However, there is no explicit consensus on the overall correctness of the answers, as some participants express differing levels of confidence.

Contextual Notes

Participants express uncertainty regarding the implications of equilibrium constants on reaction rates and stability, highlighting the complexity of these concepts in chemical equilibrium.

Who May Find This Useful

Students studying chemical equilibrium, educators seeking examples of common misconceptions, and individuals interested in the conceptual nuances of chemical reactions may find this discussion beneficial.

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Can anyone please help me on these chem equilibrium questions. I just want to make sure if they are correct or not.

1. A chemical system in equilibrium will
a. form more products if the the temperature is increased
b. have a specific ratio of product to reactant concentrations
c. not have any precipitates
d. represent a spontaneous chemical process

is the answer b? i think it makes the most since. i know it is definitely not C or D. and i think A. depends on whether it is an exothermic or endothermic reaction.

__________________________________________

2. A reaction has a very large equilibrium constant of 3.3x10^13. Which statement is NOT true about this reaction?

a. the reaction is very fast
b. the reaction is essentially complete
c. the equilibrium constant will change if the temperature changes.
d. the products will react to yield very little reactants.

ok for this one i think the answer is a.
b and c is definitely true. and for d since k > 1 then it'll shift right because the products are favored so i think that is also true. so that leaves A as being false
__________________________________________

and my last question w/ my attempt at solving it:
http://img20.imageshack.us/img20/2777/chemicalequilibriummf4.png


Thanks for anyone that can help :D
 
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#1 - Both (b) and (d) seem good. (b) is more assured.

#2 - Stability and rate are two different concepts. Something may occur because of stability of the result, but this does not mean that it must occur fast. I choose (a).

#3 - Your work here makes the best sense.
 
alright thanks. i was correct on all of them then. someone delete/close this thread or whatever.
 
symbolipoint said:
#1 - Both (b) and (d) seem good. (b) is more assured.

#2 - Stability and rate are two different concepts. Something may occur because of stability of the result, but this does not mean that it must occur fast. I choose (a).

#3 - Your work here makes the best sense.

? Consider an acid-base neutralization reaction. This type of reaction generally occurs fast and yields a very large equilibrium constant.
 

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