Guest practice

Chapter 9: Chemical Equilibrium

Questions

Answered

Time left

--:--

Guest mode: this attempt shows an instant score but is not saved. Sign up or log in before playing to store results.

Quiz progress 0% complete

Equilibrium constant for a given reaction is:

A Always changing B Constant at fixed temperature C Affected by catalyst D Affected by pressure

Equilibrium constant is a measure of:

A Rate of reaction B Extent of reaction C Speed of reaction D Time of reaction

Which condition favors formation of more products in exothermic reaction?

A Increase temperature B Decrease temperature C Add catalyst D Increase pressure only

Qasim is learning about dynamic equilibrium. He knows that at equilibrium, the system is in balance. What does the term 'dynamic' in dynamic equilibrium refer to?

A The reaction is static B The reaction is constantly changing C The forward and reverse reactions are actively occurring D The reaction is irreversible

Increase in pressure favors the side with:

A More moles of gas B Less moles of gas C Equal moles D Solids only

Rania is studying the conditions for equilibrium. She understands that the system must be closed. What is a characteristic of a closed system?

A It can exchange matter with the surroundings B It cannot exchange matter with the surroundings C It can exchange energy and matter D It is always at equilibrium

Bilal is studying dynamic equilibrium. He understands that at equilibrium, the rate of the forward reaction equals the rate of the reverse reaction. What is the state of the concentrations of reactants and products at equilibrium?

A They are equal B They are constant but not necessarily equal C They are zero D They are continuously changing

Chemical equilibrium is important in industry because it:

A Stops reactions B Controls product yield C Eliminates catalysts D Prevents reactions

The law of mass action was proposed by:

A Arrhenius B Le Chatelier C Guldberg and Waage D Dalton

Waleed is learning about chemical equilibrium. He knows that the equilibrium constant (K) does not depend on the initial concentrations. What does K depend on?

A Initial concentrations B Temperature C Pressure D Catalyst

Exit quiz