Question

An air bubble is released from the bottom of a pond and is found to expand to thrice its original volume as it reaches the surface. If the atmospheric pressure is 100 k Pa, the absolute pressure at the bottom of lake in k Pa is ….. (assume no temperature variation)

• A. 33.3
• B. 50.0
• C. 100.0
• D. 300.0

Answer 1

Answer: (D)

300.0

Answer 2

P₁V₁ = P₂V₂ & V = $\frac { 4 } { 3 }$ pr³