Nitrogen weighing 280 g was heated at a constant pressure of 100 C. Determine the work of expansion.

To find the value of the expansion work of the taken nitrogen gas, we use the formula: A = m * R * ΔT / MN2.

Variables and constants: m is the mass of expanded nitrogen (m = 280 g = 0.28 kg); R – universal gas constant (R = 8.31 J / (K * mol)); ΔT – change (increase) in temperature (ΔТ = 280 K); MN2 – molar mass (MN2 = 2.8 * 10-2 kg / mol).

Let’s calculate: A = m * R * ΔT / MN2 = 0.28 * 8.31 * 100 / (2.8 * 10-2) = 8310 J.

Answer: The work of expansion of the taken nitrogen gas is 8310 J.