For the Reaction: PCl₃(g) + Cl₂(g) ⇌ PCl₅(g) at 85°C

question 5

Multiple Choice

For the reaction: PCl₃(g) + Cl₂(g) ⇌ PCl₅(g) at 85°C, Kp = 1.19
If one starts with 2.00 atm pressure of PCl₃, 1.00 atm pressure of Cl₂ and no PCl₅, what is the partial pressure of PCl₅(g) at equilibrium?

• A) 0.167 atm
• B) 0.739 atm
• C) 0.621 atm
• D) 0.465 atm
• E) 0.553 atm

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Definitions:

Language-Acquisition Device (LAD)

Hypothetical module of the human mind posited by Noam Chomsky to account for the innate predisposition of children to acquire language.

Neural System

The network of nerve cells and fibers that transmits nerve impulses between parts of the body, including the brain and spinal cord.

Fast Mapping

A cognitive process by which children rapidly learn the meaning of a word after just a few exposures, contributing significantly to vocabulary growth.

Overextension

A language error, common in early child language acquisition, where a child applies a word too broadly to objects or actions that don't fit the word's meaning.