A gas is to be expanded from initial state i to final state f along either path 1 or path 2 on a p-V diagram. Path 1 consists of three steps: an isothermal expansion (work is 23 J in magnitude), an adiabatic expansion (work is 35 J in magnitude), and another isothermal expansion (work is 16 J in magnitude). Path 2 consists of two steps: a pressure reduction at constant volume and an expansion at constant pressure . what is the change in the internal energy of gas along path 2 ?

Explanation

To find the change in the internal energy of the gas along path 2, we need to understand the relationship between internal energy, work done, and heat transfer according to the first law of thermodynamics. The first law states:

\[ \Delta U = Q - W \]

Where:
- \(\Delta U\) is the change in internal energy,
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