9. A heat engine does 2000 J of work and it loses 6000 J through the exhaust and friction. What is its efficiency? 10. During an adiabatic process, 20 moles of a monatomic ideal gas undergo a temperature change from 450 K to 320 K starting from an initial pressure is 400 kPa. The ideal gas constant is R= 8.314 J/mol. K. How much heat does the gas exchange during this process? a. b. What is the change in the internal (thermal) energy of the gas during this process?

9. A heat engine does 2000 J of work and it loses 6000 J through the exhaust and friction. What is its efficiency? 10. During an adiabatic process, 20 moles of a monatomic ideal gas undergo a temperature change from 450 K to 320 K starting from an initial pressure is 400 kPa. The ideal gas constant is R= 8.314 J/mol. K. How much heat does the gas exchange during this process? a. b. What is the change in the internal (thermal) energy of the gas during this process?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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