1. (a) In your own words explain the physical origin of the pressure gradient force.(b) What molecular property determines the Temperature in degrees K?(c) With help from the first law of thermodynamics [ dq = c,dT + p d(²)], explainphysically why temperature T decreases when a parcel expands adiabatically.

Answered: 1. (a) In your own words explain the…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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1. (a) In your own words explain the physical origin of the pressure gradient force.
(b) What molecular property determines the Temperature in degrees K?
(c) With help from the first law of thermodynamics [ dq = c,dT + p d(²)], explain
physically why temperature T decreases when a parcel expands adiabatically.

Expert Solution

Step 1

1) a. Pressure gradient force is a kind of force that generally arises when there is a pressure difference between two locations across our measured distance.

Explanation

Hence the physical origin of the pressure gradient force is the difference in pressure across a surface.
 
The unit of pressure gradient force hence will be standard unit of pressure/ Unit distance.

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