AI TutorHigh School
SAT
ACT
University
MCAT
LSAT
DAT

Le Chatelier's Principle: Equilibrium constant

Related Topics

Wize High School Grade 12 Chemistry Textbook > Equilibrium

Le Chatelier's Principle

5 Activities

Wize High School Grade 12 Chemistry Textbook > Equilibrium

The Equilibrium Constant (K)

5 Activities

Consider the following reaction:

PCl5(g) ⇌ PCl3(g) + Cl2(g)

The measured equilibrium constant is 5.0 × 10–4 at 373 K and 0.20 at 473 K. Which of the following statements about the reaction must be true?

More Le Chatelier's Principle Questions:
Le Chatelier's Principle
Use the following reaction scenario to answer the following questions
SO2(g)+Cℓ2(g)⇌SO2Cℓ2(g)ΔrH°<0SO_2 (g) + Cℓ_2 (g) ⇌ SO_2Cℓ_2 (g) \qquad Δ_rH° < 0
You have prepared a container with these compounds and allowed it to come to equilibrium. You now have a choice of different ways to modify your system at equilibrium:
Le Chatelier’s Principle
In an esterification reaction, a carboxylic acid and an alcohol react to form an ester and water. This reaction establishes an equilibrium because the reverse process can also occur. If the water is allowed to boil and leave the system as water vapour, how will the equilibrium respond?
More The Equilibrium Constant (K) Questions:
Equilibrium constant
For the following equilibria determine whether K>1K > 1, K<1K < 1 or K≈1K \approx 1. Enter your answers as "Greater", "Less", "1" respectively.
A)
B)
Equilibrium: Reaction quotient
If the reaction A⇌BA⇌B has an equilibrium constant of K = 10–4, which one of the following statements is always true?
Equilibrium and Le Chatelier's Principle
At time = t0, 0.40 mol of Br2 (ℓ) and 0.40 mol of Cℓ2 (g) are placed in an empty, rigid 10.00 L flask and allowed to reach equilibrium.
After reaching equilibrium at time = t2, the flask is found to contain 0.20 mol of BrCℓ (g). The temperature is held constant throughout the reaction.
Equilibrium Constant
Balance each reaction and write its equilibrium constant expression
NO(g)+O2(g)↔N2O3(g)NO_{(g)}+O_{2(g)} \leftrightarrow N_2O_{3(g)}
SF6(g)+SO3(g)↔SO2F2(g)SF_{6(g)}+SO_{3(g)}\leftrightarrow SO_2F_{2(g)}
Equilibrium: Constant
At 25 ˚C, KP = 5.2 × 10–2 for the following decomposition reaction:
NH4HS(s)⇌NH3(g)+H2S(g)NH_4HS (s) ⇌ NH_3 (g) + H_2S (g)
(a) Calculate the equilibrium partial pressures of ammonia (NH3) and hydrogen sulfide (H2S) if a sample of solid NH4HS is placed in a closed vessel initially containing 11 atm of NH3 gas. Note that the vessel still contains some solid NH4HS at equilibrium. State and justify any assumptions you might make during your calculation.
Equilibrium plots: Equilibrium constant
You mix three unknown compounds in a container: a solid (A), and two gases (E and X). You do not know the chemical formula of any of the compounds, but you are able to track the progress of the reaction by measuring changes in the concentrations of both gases, as shown in the graph below.
Which of these reactions and equilibrium constants could be represented by the data shown in this graph?