A gas is compressed and the work done on the gas is -5000 J as illustrated in the diagram below. What is the pressure p_a of the gas?

• A. 1.2 × 10² kPa
• B. 1.7 × 10² kPa
• C. 2.5 × 10² kPa
• D. 3.3 × 10² kPa

Answer: (C)