Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 17 - For Thought and Discussion: 11

Answer

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Work Step by Step

We need to consider the molar mass of $H_2$, which has a fairly low molar mass. Because of this, it takes a heavy planet to attract it. (After all, recall a gravitational force depends on the mass of both things, not just the mass of the planet.) Because it takes a stronger gravitational pull, it makes sense that Jupiter, which is over 300 times more massive than earth, has more $H_2$ around it than earth does.
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