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Chem 116 Exam 3 with Questions & Correct Verified Answers $12.99   Add to cart

Exam (elaborations)

Chem 116 Exam 3 with Questions & Correct Verified Answers

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  • Course
  • Chem 116
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  • Chem 116

Chem 116 Exam 3 with Questions & Correct Verified Answers

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  • September 3, 2024
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Chem 116
  • Chem 116
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KenAli
Chem 116 Exam 3 with Questions &
Correct Verified Answers
what is not included in expression for Kc - ✔✔pure liquid or solid



what is Kp - ✔✔equilibrium constant using partial pressure as a measure of concentration
(gas reactions)



equation relating Kp and Kc - ✔✔Kp=Kc (RT^delta n)



what is delta n - ✔✔number of moles gas product-number of moles gas reactant



what does Kc become when inverting an equation - ✔✔1/Kc



what does Kc become when scaling a chemical equation -
✔✔(Kc)^n -n being an interger



if a reaction is at equilibrium concentrations are what - ✔✔constant



when adding reactions the new equilibrium constant is the what - ✔✔product of the equilibrium
contacts of the reactions that are added



if Qc<Kc what way does the reaction move - ✔✔to the right (more products)

, if Qc>Kc what way does the reaction move - ✔✔moves to the left (more reactants)



if Qc=Kc what way does the reaction move - ✔✔reaction at equilibrium, no change



when given initial concentrations and one equilibrium constant what can ICE tables determine -
✔✔Kc or Kp



what is Le Chatelier's principle - ✔✔if a reaction is in equilibrium is perturbed (stressed) the
system responds by trying to remove the pertubation



what factors perturb reactions - ✔✔-changing concentrations of reactants/products

-change in temperature

-change in pressure

-changing volume



factors that don't perturb equilibrium - ✔✔-changing pressure using inert gas

-adding a catalyst



what happens to equilibrium if we decrease the pressure (by increasing the volume) - ✔✔the
system moves to the direction of more moles of gas



what happens to equilibrium hone you increase the pressure by decreasing the volume -
✔✔reaction moves to the side with less moles of gas



what gives out heat - ✔✔exothermic



what absorbs heat - ✔✔endothermic



if it is exothermic on the forward direction it is what in the reverse direction - ✔✔endothermic
and vice versa

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