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2500-15-large satellites

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<strong>15</strong>.7 Comparing the Large Satellites<br />

Titan Point #4<br />

The Ability of Water Ice to Trap Gases<br />

Depends Upon the Temperature of the Ice<br />

(and Therefore the Structure), Along With<br />

the Size and Electrical Properties of the<br />

Gas Molecules<br />

• Hydrogen (H), Helium (He) and Neon (Ne) Are<br />

Only Trapped at Temperatures Below 25 o K<br />

• Argon (Ar), Methane (CH 4 ), Nitrogen (N 2 ), and<br />

Carbon Monoxide (CO) Are Trapped in Varying<br />

Amounts Depending on the Ice Temperature

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