The work done on a gas under constant pressure can be calculated using the equation W = PΔV, where P is the constant pressure and ΔV is the change in volume of the gas.
The units for work done on a gas are joules (J) or newton-meters (N·m).
The change in volume of a gas can be found by subtracting the initial volume from the final volume. In this case, it would be 2.0L - 4.0L = -2.0L.
In this scenario, the pressure is constant because it is stated as 850 Pa and does not change throughout the process.
Yes, this equation can be used for all types of gases as long as the pressure remains constant throughout the process.