The Value of ΔS° for the Formation of Phosphorous Trichloride

question 91

Multiple Choice

The value of ΔS° for the formation of phosphorous trichloride from its constituent elements, P₂ (g) + 3Cl₂ (g) → 2PCl₃ (g)
Is ________ J/K ∙ mol.

• A)-311.7
• B)+311.7
• C)-263.6
• D)+129.4
• E)-129.4

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Definitions:

Negatively Charged

Refers to atoms or molecules that have gained one or more electrons, resulting in a net negative charge.

Molecule

The smallest physical unit of an element or compound, consisting of one or more atoms held together by chemical forces.

Ion

A molecule or atom that has acquired an overall electric charge from either losing or gaining electrons.

Hydrogen Bond

Hydrogen atoms bound covalently to either N or O atoms have a small positive charge that is weakly attracted to the small negative charge of other atoms, such as O or N; it can occur within a molecule or between different molecules.