Question

Draw a first-law bar chart (see Figure 19.12) for the gas process in

Short answer

The work is positive level and heat is zero.

Step-by-step solution

Definition of adiabatic process 

This process has ben seen when heat or energy doe not transfer from one system to other.

Finding the major points of the diagram

Based of the graph, the volume decrease that means $V_f<V_i$and energy transfer from environment to system. so the work done is positive .

pressure is increased and heat is not absorbed