Concept explainers
(a)
Theoretical lapse rate on the Earth.
(a)
Answer to Problem 50P
Theoretical lapse rate on the Earth is
Explanation of Solution
Given that, the expression for lapse rate.
Here,
Conclusion:
Substitute,
Therefore, theoretical lapse rate on the Earth is
(b)
Reason for the theoretical lapse rate is different from the value
(b)
Answer to Problem 50P
Air contains water vapor. This water vapor condense out as liquid drops if the parcel of air rises in the atmosphere. So the heat of vaporization due to this condensation will result in the raising temperature than the value
Explanation of Solution
The air does not behaves as an ideal gas since it contain water vapor. When the parcel of air roses in the atmosphere, its temperature decreases. Then the ability to contain water vapor decreases. So the water vapor condense out as liquid drops. It will produce heat if vaporization. Hence the temperature of the air increases above the value
Conclusion:
Therefore, the theoretical lapse rate is different from the value
(c)
Lapse rate for the Martian troposphere.
(c)
Answer to Problem 50P
Lapse rate for the Martian troposphere is
Explanation of Solution
Write the expression for acceleration due to gravity in the Mars.
Here,
Conclusion:
Substitute,
Substitute,
Therefore, lapse rate for the Martian troposphere is
(d)
The height in the Martial troposphere at which the temperature is
(d)
Answer to Problem 50P
The height in the Martial troposphere at
Explanation of Solution
The lapse rate can be expressed as,
Solve the equation (III) for
Conclusion:
Substitute,
Therefore, the height in the Martial troposphere at
(e)
The reason for the dust affect the lapse rate, and the mission occurred in dustier conditions, Mariner or viking.
(e)
Answer to Problem 50P
The dust in the atmosphere contribute energy to the gas molecule, it will results the increases in internal energy of the atmosphere, and decrease in temperature with height. If the dust rate is larger, then the lapse rate will deviate from the theoretical value. This was the dustier during the Marine fights.
Explanation of Solution
The dust in the atmosphere absorbs and scatters energy from the
Conclusion:
Therefore, lapse rate will deviate from the theoretical value, and this was the dustier during the Marine fights.
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Chapter 16 Solutions
Principles of Physics
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