In a Phase Change of Water Between the Liquid and the Gas

question 34

Multiple Choice

In a phase change of water between the liquid and the gas phases, 770.1 kJ of energy was released by the system. What was the product, and how much of it was formed in the phase change? (Data: H₂O(l) → H₂O(g) ΔH = 44.01 kJ/mol.)

• A)315 g water vapor was produced.
• B)17.5 g of water vapor was produced.
• C)17.5 mol of water vapor was produced.
• D)17.5 mol of liquid water was produced.
• E)17.5 g of liquid water was produced.

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Definitions:

Tertiary Structure

The overall three-dimensional structure of a protein molecule, formed by the folding and coiling of its secondary structures into a unique shape.

Protein Folding

The physical process by which a protein chain acquires its three-dimensional structure, which is critical for its biological function.

Asymmetric Carbons

Asymmetric carbons are carbon atoms bonded to four different atoms or groups, leading to molecules that can exist in non-superimposable mirror images, or enantiomers.

Variable Groups

Identifiable segments or categories within a study or dataset that are manipulated or categorized for analysis.