Thermodynamics

1 mole of an ideal gas expands isothermally and reversibly by decreasing pressure form \(210 \mathrm{~kPa}\) to \(105 \mathrm{~kPa}\) at \(300 \mathrm{~K}\). What is the work done? \(\left(\mathrm{R}=8.314 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\right)\)