Consider the Following Reaction at a Certain Temperature:
PCl₅(g) $f$ PCl₃(g)+ Cl₂(g)
K_c = 0

question 37

Multiple Choice

Consider the following reaction at a certain temperature:
PCl₅(g)
$f$
PCl₃(g) + Cl₂(g)
K_c = 0.100
At equilibrium,[PCl₅] = 2.00 M and [PCl₃] = [Cl₂] = 1.00 M.If suddenly 1.00 M PCl₅(g) ,PCl₃(g) ,And Cl₂(g) Is added,What is the equilibrium concentration of Cl₂(g) ?

• A) 3.0 M
• B) essentially zero
• C) 0.65 M
• D) 2.75 M
• E) 3.35 M

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Definitions:

Conditioned Stimulus

A previously neutral stimulus that, after association with an unconditioned stimulus, comes to trigger a conditioned response.

Unconditioned Stimulus

A stimulus that naturally and automatically triggers a response without the need for prior learning.

Conditioned Response

An automatic response established by training to an ordinarily neutral stimulus.

Conditioned Stimulus (CS)

A previously neutral stimulus that eventually elicits a conditioned response after being paired with the unconditioned stimulus.