Question 19
Gas LawsA gas with initial volume 2 × 10−6 m3 is allowed to expand to six times its initial volume at constant pressure of 2 × 105 N m−2. The work done is
- A.2.0 J
- B.4.0 J
- C.12.0 J
- D.1.2 J
Show the answer and explanation
Answer: A (2.0 J)
Explanation
W = PΔV = 2 × 105 × (12 − 2) × 10−6 = 2.0 J.