Gas-phase Equilibrium Constant Quiz

Gas-phase Equilibrium Constant Quiz

12th Grade

6 Qs

quiz-placeholder

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Gas-phase Equilibrium Constant Quiz

Gas-phase Equilibrium Constant Quiz

Assessment

Quiz

Chemistry

12th Grade

Easy

Created by

Shawn Gray

Used 1+ times

FREE Resource

6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For gas-phase solutions, the equilibrium constant (K) may be expressed in terms of which quantities?

Molar concentrations (Kc) only

Partial pressures (Kp) only

Both molar concentrations (Kc) and partial pressures (Kp)

Neither molar concentrations nor partial pressures

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the expression for the equilibrium constant Kc for the dissolution of PbCl2(s) in water?

Kc = [Pb^2+][Cl^-]^2

Kc = [Pb^2+][Cl^-]

Kc = [Pb^2+]^2[Cl^-]^2

Kc = 1/[Cl^-]^2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the expression for the equilibrium constant Kc for the reaction of CaO(s) with CO2(g) to form CaCO3(s)?

Kc = [CaO][CO2]

Kc = 1/[CO2]

Kc = [CaCO3]

Kc = [CO2]

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the value of the equilibrium constant (Kc) change with an increase in temperature for an exothermic reaction?

It increases

It decreases

It remains constant

It first increases, then decreases

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the effect of adding a catalyst on the equilibrium constant (Kc) for a reaction at constant temperature?

It increases Kc

It decreases Kc

It does not affect Kc

It initially decreases, then increases Kc

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the reaction 2A(g) + B(g) ⇌ 3C(g), what is the expression for the equilibrium constant Kp in terms of partial pressures?

Kp = (P_C)^3 / (P_A)^2(P_B)

Kp = (P_A)^2(P_B) / (P_C)^3

Kp = (P_C)^2 / (P_A)(P_B)^3

Kp = (P_A)(P_B)^2 / (P_C)^3

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