A community for students.
Here's the question you clicked on:
 0 viewing
Lena772
 one year ago
How to calculate Kc if not given temperature?
Lena772
 one year ago
How to calculate Kc if not given temperature?

This Question is Closed

Lena772
 one year ago
Best ResponseYou've already chosen the best response.0\[K _{c}=\frac{ K _{p}}{(RT)^{\Delta \eta}}\]

cuanchi
 one year ago
Best ResponseYou've already chosen the best response.0what information do you have? do you have the partial pressures of all the components at the equilibrium or the total pressure and the molar rates?

cuanchi
 one year ago
Best ResponseYou've already chosen the best response.0do you have the reaction or they said is a STP condition?

Lena772
 one year ago
Best ResponseYou've already chosen the best response.0Calculate the Kc of the reaction below assuming all reactant and product concentrations are 2.00 M at equilibrium. Ag+ (aq) + Cl (aq) ⇌ AgCl (s) I think delta N is 0, that's what I got

aaronq
 one year ago
Best ResponseYou've already chosen the best response.3you dont need that equation. you have to do this.. For a general chemical equation: \(\sf aA+bB\rightleftharpoons cC\) The equilibrium expression is: \(\sf K_c=\dfrac{[Products]}{[Reactants]}=\dfrac{[C]^c}{[A]^a[B]^b}\) Where the brackets (\(\sf [ ~]\)) mean concentration (Molarity).

Jhannybean
 one year ago
Best ResponseYou've already chosen the best response.0Woot. using that `/sf` @aaronq :)

Photon336
 one year ago
Best ResponseYou've already chosen the best response.1I think another important fact is that the reaction has already reached equilibrium so I think you can just plug in all the values moles for both reactants and products they give you once you set up Kc as @aaronq said.

Lena772
 one year ago
Best ResponseYou've already chosen the best response.0Concentration of (s) = 1 so, 1/(((2)^1)(2)^1))= 1/4 = 0.25 ?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0If the question is about temperature, then I would calculate according to the standard formula (or see @arronq 's post) and state that Kc applies to the temperature at which the experiment was performed.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.