The following reaction aA + bB produce cC + dD.
The realtion that determine the equilibirum constant, Kc is known as
CHEMICAL EQUILIBRIUM
Quiz
•
Chemistry
•
6th - 9th Grade
•
Medium
SYED BM
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
The following reaction aA + bB produce cC + dD.
The realtion that determine the equilibirum constant, Kc is known as
Law of active mass.
Law of mass action.
Law of chemical reactions.
Law of conservation of mass.
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the following statements is CORRECT for a reaction at an equilibrium?
The rate of forward and reverse reactions are equal.
The final concentrations of product and reactant are equal.
The initial concentrations of product and reactant are equal.
The rate constant of the forward and reverse reactions are equal.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For the graph, choose the CORRECT statement.
The rate of reaction slowly increase
The systems never reach equilibrium
At equilibrium, more NO2 is present than N2O4.
At start of reaction, only NO2 was present.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Equilibria in which all substances are in the same phases are called
dynamic equilibrium.
equilibrium constant.
homogeneous equilibria.
heterogeneous equilibria.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For the reaction, choose the CORRECT equilibrium constant, Kc.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
From the reaction, choose the CORRECT equilibrium constant, Kp.
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Choose the CORRECT sentence to complete the following Le Chatelier's principle.
"If a chemical system at equilibrium is disturbed, the system will..."
not respond in any way unless a significant change in temperature is made.
stop the chemical reaction and resume only after the disturbance is removed.
shift its equilibrium position in the direction that reduces the effect of the disturbance.
shift its equilibrium position that returns all reactants and products to their original concentrations.
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