Examples for

Atmospheric Thermodynamics

Atmospheric thermodynamics describes the thermodynamic properties of moist and dry air. Use Wolfram|Alpha to calculate the saturation vapor pressure, sound absorption and speed, dew point and other properties of air.

Dry Air

Compute the thermodynamic properties of dry air.

Calculate properties of dry air:

density of dry air at 5 C

heat capacity of air at 120 F

sound speed of air -40 F

internal energy of air

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Psychrometrics

Calculate the properties and state transformations of moist air.

Compute properties of moist air:

moist air drybulb 72F, wetbulb 66F, pressure 29inHg

Compute the sound absorption coefficients for moist air:

absorption coefficient of sound moist air at 30C and 20%

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Saturation Vapor Pressure

Calculate the saturation vapor pressure at different temperatures using the Arden Buck and Goff–Gratch equations.

Compute the saturation vapor pressure:

saturation vapor pressure 30C

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