A cylinder is heated, so the air trapped inside expands while the pressure remains constant at $2.2 \times 10^5\,\text{Pa}$. As the air expands, the piston moves upward by $0.50\,\text{m}$ and does $11\,\text{kJ}$ of work. Frictional effects are negligible. What is the area of the piston’s cross-section?
- A$1.0 \times 10^{-4}\,\text{m}^2$
- B$2.5 \times 10^{-2}\,\text{m}^2$
- C$5.0 \times 10^{-2}\,\text{m}^2$
- D$1.0 \times 10^{-1}\,\text{m}^2$