An Expandable Container Holds 2

question 8

Multiple Choice

An expandable container holds 2.50 moles of He gas with an initial pressure of 750 kPa and an initial volume of 2.0 L. The gas expands isothermally to a final pressure of 375 kPa. How much heat is gained by the gas in this process?

• A)1040 J
• B)452 J
• C)-452 J
• D)-1040 J

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Definitions:

Alteration Minerals

Minerals that form as a result of chemical changes in rocks, often due to hydrothermal fluid activity.

Iron Ore

A natural mineral or rock from which iron can be profitably extracted, typically rich in iron oxides.

Caldera

A large volcanic crater typically formed by a major eruption leading to the collapse of the mouth of the volcano.

Metal-Rich Fluids

Liquids that contain high concentrations of metals, often found in geological settings where they can deposit valuable ore minerals.