Carnot Cycle

Introduction

1. Isothermal expansion: Heat is transferred from the hot reservoir to the gas.
2. Isentropic (reversible adiabatic) expansion
3. Isothermal compression
4. Isentropic compression

Ideal Gas

$pV=nRT$

1. Isothermal compression: T is constant, thus we have $p=$cons /T.

Air

Adiabatic index $\gamma =c_{p}/c_{v}$ is for the air 7/5.