Unit-1: Basic Concepts
Completion requirements
Making a irreversible process to approach a reversible process
In the process as shown in Fig. (a), no useful work has been done.
In an improved process as shown in Fig. (b), the weight m is divided into two parts. In this process, part of the weight (1/2 m) has been raised roughly half the distance of the pistons’ travel, and useful work has been accomplished.
