A2L Item 112

Goal: Hone the concept of work on a gas

Source: UMPERG-ctqpe220

One mole of an ideal monatomic gas is taken around the cycle shown.

The work done on the system during the process B to C is

  1. Positive
  2. Negative
  3. No work is done on the system
  4. Cannot be determined

Commentary:

Answer

(1) Positive work is done ON the system. Since the path on a V-T diagram
is a straight line, the process is isobaric.