Answer: Atmosphere of Titan. Titan, the largest satellite

Chapter 18, Problem 59P

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QUESTION:

Problem 59P

Atmosphere of Titan. Titan, the largest satellite of Saturn, has a thick nitrogen atmosphere. At its surface, the pressure is 1.5 earth-atmospheres and the temperature is 94 K. (a) What is the surface temperature in oC? (b) Calculate the surface density in Titan’s atmosphere in molecules per cubic meter. (c) Compare the density of Titan’s surface atmosphere to the density of earth’s atmosphere at 22o C. Which body has denser atmosphere?

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QUESTION:

Problem 59P

Atmosphere of Titan. Titan, the largest satellite of Saturn, has a thick nitrogen atmosphere. At its surface, the pressure is 1.5 earth-atmospheres and the temperature is 94 K. (a) What is the surface temperature in oC? (b) Calculate the surface density in Titan’s atmosphere in molecules per cubic meter. (c) Compare the density of Titan’s surface atmosphere to the density of earth’s atmosphere at 22o C. Which body has denser atmosphere?

ANSWER:

Solution to 59P

Step 1

Atmospheric composition of Titan=Nitrogen (N2)

Pressure of Titan atmosphere =1.5 earth atmospheres=1.5 bar =1.5x105Pa

Temperature=94K

Molar mass of Nitrogen =28.013g=28.013x10-3Kg

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