A Method of Removing CO₂ from a Spacecraft Is to Allow

question 25

Multiple Choice

A method of removing CO₂ from a spacecraft is to allow the CO₂ to react with sodium hydroxide. (The products of the reaction are sodium carbonate and water.) What volume of carbon dioxide at 25°C and 749 mmHg can be removed per kilogram of sodium hydroxide that reacts?

• A)301 L
• B)284 L
• C)276 L
• D)310 L
• E)620 L

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Definitions:

Metamorphic Rocks

Rocks that have been transformed from an original state into a new texture or structure by heat, pressure, and/or fluid activity.

Solidification

The process of a liquid becoming solid, especially upon cooling, as in the formation of igneous rock from cooled magma or lava.

Erosion

The wearing away of soil, sediment, and rock through the removal of material by running water, waves, currents, ice, wind, and gravity.

Weathering

Physical disintegration and chemical decomposition of rocks, sediment, and soil due to exposure to water and other chemical, atmospheric, and biological agents.