Elite QandA


What is the difference between Q and K?


  1. What is the difference between Q and K?
  2. What is Q and K in electrochemistry?
  3. What is K KP and Q in chemistry?
  4. What is the Q value in chemistry?
  5. What is K in chemistry temperature?
  6. What is the difference between K KP and Q?
  7. How does temperature affect Q and K?

What is the difference between Q and K?

The difference between K and Q is that, K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage of a reaction.

What is Q and K in electrochemistry?

The Nernst equation is used in calculating the equilibrium constant. At equilibrium Q = K. Substituting in K for Q, and the values for R, T, and F, we get: Example: Find the value of the equilibrium constant at 25oC for the cell reaction for the following electrochemical cell: Cu | Cu2+(1 M) || Ag+(1 M) | Ag.

What is K KP and Q in chemistry?

Re: Kc vs Kp vs Q [ENDORSED] When this is the case and all values are given in pressures, we use Kp, which is the equilibrium constant for pressure. So Kc for Concentration and Kp for Pressure. You use Q when you are unsure if a reaction is at equilibrium.

What is the Q value in chemistry?

The reaction quotient (Q) measures the relative amounts of products and reactants present during a reaction at a particular point in time. The reaction quotient aids in figuring out which direction a reaction is likely to proceed, given either the pressures or the concentrations of the reactants and the products.

What is K in chemistry temperature?

K is the symbol given to the equilibrium constant for a chemical reaction. The value of the equilibrium constant, K, for a given reaction is dependent on temperature.

What is the difference between K KP and Q?

So Kc for Concentration and Kp for Pressure. You use Q when you are unsure if a reaction is at equilibrium. Say for example you are in a lab and don't know how long a reaction takes. So you check after 15 minutes and take their concentrations to see if the reaction has reached equilibrium.

How does temperature affect Q and K?

If the enthalpy of the reaction is negative, then you known that the reaction is exothermic, or is releasing energy in the form of heat. This means that and increase in temperature for an exothermic reaction will cause a decrease in K, leading to Q>K, and ending in a left shift in favor of reactants.



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