In a Gas Mixture of He, Ne, and Ar with a Total

question 52

Multiple Choice

In a gas mixture of He, Ne, and Ar with a total pressure of 8.40 atm, the mole fraction of Ar is ________ if the partial pressures of He and Ne are 1.50 and 2.00 atm, respectively.

• A)0.179
• B)0.238
• C)0.357
• D)0.583
• E)0.417

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Definitions:

Globular (G) Actin

A monomeric form of actin protein that can polymerize to form filamentous (F) actin, part of the cytoskeleton in cells.

ATP-Binding Site

A region on a protein where ATP (adenosine triphosphate) binds, often involved in energy transfer within cells.

Thick Myofilament

A filament in muscle cells that is composed of the protein myosin, contributing to muscle contraction.

Myosin

A protein that works with actin to contract and relax muscle fibers.