An ideal gas is inside a cylinder fitted with a piston of cross-sectional area \(0.10 \mathrm{~m}^{2}\), and initially the gas pressure is \(5.0 \times 10^{4} \mathrm{~Pa}\). A quantity \(Q=5.0 \mathrm{~kJ}\) of thermal energy is transferred slowly to the gas while the piston moves \(0.10 \mathrm{~m}\) and the gas expands. If the expansion is isobaric, how much work is done on the gas?