1.2 The work done during the constant pressure process

Here is the solution for question 1.2:

1.2 The work done during the constant pressure process

The constant pressure process is from state 3 to state 4.
From the P-V diagram:

• Pressure at state 3 and 4, $P_3 = P_4 = 6200 \text{ kPa}$
• Volume at state 3, $V_3 = 0.0054 \text{ m}^3$
• Volume at state 4, $V_4 = 0.0125 \text{ m}^3$

The formula for work done during a constant pressure process is:

$$W = P \times (V_{final} - V_{initial})$$

In this case, $W_{3-4} = P_3 \times (V_4 - V_3)$.