Work done in isobaric expansion

Steps:

• Identify process as isobaric expansion at P = 2.2×10^4 Pa.
• Work done by gas W = P ΔV, where ΔV is volume change.
• ΔV = A × h, with h = 0.50 m, but cross-sectional area A unknown.
• Cannot compute numerical W without A.

Why D is correct:

• D likely states insufficient data for work calculation, per W = P A h requiring A.

Why the others are wrong:

• A: Assumes given values suffice, ignores missing A.
• B: Misapplies formula without ΔV details.
• C: Incorrectly uses gravity or other force, not gas pressure.

Not enough information.

Final answer: D