Using Energy Concepts and the Ideal Gas Model Air is confined to one side of a ri...

Using Energy Concepts and the Ideal Gas Model

Air is confined to one side of a rigid container divided by a partition, as shown in Fig. P3.130. The other side is initially evacuated. The air is initially at p₁ = 5 bar, T₁ = 500 K, and V₁ = 0.2 m³. When the partition is removed, the air expands to fill the entire chamber. Measurements show that V₂ = 2V₁ and p₂ = p₁/4. Assuming the air behaves as an ideal gas, determine (a) the final temperature, in K, and (b) the heat transfer, kJ.\