The Reaction System Is at Equilibrium

question 64

Multiple Choice

The reaction system is at equilibrium. Which of the following statements describes the behavior of the system if the partial pressure of chlorine is reduced by 50%?

• A) POCl₃ will be consumed as equilibrium is established.
• B) POCl will be consumed as equilibrium is established.
• C) Chlorine will be consumed as equilibrium is established.
• D) The partial pressure of POCl will decrease while the partial pressure of Cl₂ increases as equilibrium is established.
• E) The volume will have to decrease before equilibrium can be reestablished.

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Definitions:

CS

Conditioned Stimulus; A previously neutral stimulus that, after being paired with an unconditioned stimulus, evokes a conditioned response.

UCS

Unconditioned Stimulus; in classical conditioning, a stimulus that unconditionally, naturally, and automatically triggers a response without prior learning.

CR

In classical conditioning, it stands for Conditioned Response, which is the learned reaction to a previously neutral stimulus.

Extinction

In behavioral psychology, the process through which a conditioned response decreases in frequency and eventually disappears.