An Ideal Gas Is Allowed to Expand Adiabatically

question 32

Multiple Choice

An ideal gas is allowed to expand adiabatically. Assume the process is reversible. The change in entropy is

• A) 0
• B) nR ln (V₂/V₁)
• C) nR ln (T₂/T₁)
• D) kn ln (V₂/V₁)
• E) kn ln (T₂/T₁)

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Definitions:

TsCl

Tosyl chloride, a chemical reagent used to make alcohols more reactive by converting them into tosylates.

(R)-Butan-2-Ol

A specific enantiomer of butan-2-ol, which is a four-carbon alcohol with the hydroxyl group (-OH) located on the second carbon; the (R) configuration indicates its specific stereochemistry based on the Cahn-Ingold-Prelog priority rules.

Pyridine

A basic heterocyclic organic compound with the chemical formula C5H5N, used as a precursor to agrochemicals and pharmaceuticals, and as a solvent.

Major Organic Product

The most abundant product formed in a chemical reaction, especially in organic synthesis.