An engine consists of a constant volume process at 0.8 m3 from 136 kPa to 381 kPa, an isothermal expansion until the pressure drops to its original value, and a constant pressure process returning to its original pressure and volume. Calculate the efficiency of this process if the gas is ideal and diatomic. [Hints: 1. You need the volume at the end of the isothermal process. Find it easily with the ideal gas law! 2. For |QHl, add the energy inputs during the constant volume and iosthermal processes.]

An engine consists of a constant volume process at 0.8 m3 from 136 kPa to 381 kPa, an isothermal expansion until the pressure drops to its original value, and a constant pressure process returning to its original pressure and volume. Calculate the efficiency of this process if the gas is ideal and diatomic. [Hints: 1. You need the volume at the end of the isothermal process. Find it easily with the ideal gas law! 2. For |QHl, add the energy inputs during the constant volume and iosthermal processes.]

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter3: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 92AP: Two moles of a monatomic ideal gas such as oxygen is compressed adiabatically and reversibly from a...

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