EXPLORATIONS:INTRO.TO ASTRONOMY
9th Edition
ISBN: 9781260150513
Author: ARNY
Publisher: RENT MCG
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Chapter 9, Problem 2TY
To determine
The composition of the mercury.
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Assume that a planet will have lost its initial atmosphere by the present time if the average molecular speed exceeds one-sixth of the escape speed.
What would Mercury's mass have to be in order for it to still have a nitrogen atmosphere? The molecular weight of nitrogen is 28.
The total mass of this planet's atmosphere may be higher than the Earth's but the gases present must be very light ones like hydrogen and helium.
The escape velocity of the planet will be very high.
Due to the high escape velocity, the light gases were not able to escape and hence forming a thick atmosphere
Is the escaping velocity for this planet greater or lower than that of the earth?
The total mass of this planet's atmosphere may be higher than the Earth's but the gases present must be very lighter ones like hydrogen and helium.
The escape velocity of the planet will be very high.
Due to the high escape velocity, the light gases were not able to escape and hence forming a thick atmosphere
Would the atmosphere for this planet be thicker or thinner than that of the Earth?
Chapter 9 Solutions
EXPLORATIONS:INTRO.TO ASTRONOMY
Ch. 9 - How do Mercury, Venus, and Mars each compare with...Ch. 9 - How do the interior structures of Mercury, Venus,...Ch. 9 - What is the surface of Mercury like?Ch. 9 - Does Mercury have an atmosphere? Why or why not?Ch. 9 - Prob. 5QFRCh. 9 - What is the dominant gas in Venuss atmosphere? How...Ch. 9 - What are the clouds of Venus made of?Ch. 9 - Why is Venus so hot?Ch. 9 - Can we see the surface of Venus? Why or why not?...Ch. 9 - Prob. 10QFR
Ch. 9 - Prob. 11QFRCh. 9 - What are the Martian polar caps composed of?Ch. 9 - (9.3) What is the Martian atmosphere like?Ch. 9 - What is the evidence that Mars once had running...Ch. 9 - Prob. 15QFRCh. 9 - Prob. 16QFRCh. 9 - Prob. 17QFRCh. 9 - Prob. 18QFRCh. 9 - Prob. 1TQCh. 9 - Prob. 2TQCh. 9 - Prob. 3TQCh. 9 - Prob. 4TQCh. 9 - Prob. 5TQCh. 9 - Prob. 6TQCh. 9 - Prob. 7TQCh. 9 - Prob. 8TQCh. 9 - What role might planetesimal impacts have played...Ch. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Prob. 3PCh. 9 - Prob. 4PCh. 9 - Olympus Mons is 26 kilometers above the...Ch. 9 - Prob. 6PCh. 9 - Prob. 1TYCh. 9 - Prob. 2TYCh. 9 - Prob. 3TYCh. 9 - Prob. 4TYCh. 9 - Prob. 5TYCh. 9 - Prob. 6TYCh. 9 - Prob. 7TYCh. 9 - Prob. 8TY
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