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Chapter 21: Q. 6 (page 593)

shows the thermodynamic cycles of two heat engines. Which heat engine has the larger thermal efficiency? Or

are they the same? Explain.

Short Answer

Expert verified

The thermal efficiency 畏1>畏2

Step by step solution

01

Step :1 Introduction

A thermodynamic cycle is a linked series of thermodynamic processes that involve the passage of heat and work into and out of a system while varying pressure, temperature, and other state variables, and that eventually returns the system to its beginning condition.

The working fluid (system) may serve as a heat engine by converting heat from a heated source into productive work and disposing of the remaining heat to a cold sink while passing through a cycle.

02

Step :2 Explanation 

Since same amount of heat is being added but WOUT is more in case of engine 1 as loop encloses greater area, hence,畏1>畏2

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