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Derivation of Adiabatic Lapse Rate |
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| Jun20-12, 05:07 PM | #1 |
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Derivation of Adiabatic Lapse Rate
In the derivation of the adiabatic lapse rate, upon using the 1st law of thermodynamics: Why is potential energy neglected? The parcel of air is doing work PdV which is balanced by the internal energy term, cvdT.
I can't think of a reason to neglect gravitational potential energy here. Thanks. |
| Jun22-12, 10:06 AM | #2 |
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The gravitational potential energy appears through the pressure P(z) because of the hydrostatic condition.
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