Answer:
To calculate the change in internal energy of the gas when it expands and performs work, you can use the first law of thermodynamics, which states that the change in internal energy (ΔU) of a system is equal to the heat added to the system minus the work done by the system.
Explanation:
Given:
Work done by the gas (W) = 2.10 × 10^3 J
Since the gas is ideal, its internal energy change (ΔU) is equal to the work done (ΔU = W)
Therefore, the change in internal energy of the gas (ΔU) is 2.10 × 10^3 J.
