At a constant pressure of 10 ^ 5 Pa, the volume of air in the apartment increased by 20 dm3.

At a constant pressure of 10 ^ 5 Pa, the volume of air in the apartment increased by 20 dm3. What kind of work will the gas do?

To calculate the work of room air during expansion, we apply the formula: A = P * ΔV.

Value of variables: P – constant pressure of room air (P = 10 ^ 5 Pa); ΔV – increase in volume (ΔV = 20 dm3; in SI system ΔV = 0.02 m3).

Let’s make a calculation: A = P * ΔV = 10 ^ 5 * 0.02 = 2 * 10 ^ 3 J (2 kJ).

Answer: Room air did a work of 2 kJ.