Image Based Question – 65252

A person involved in an activity as shown in the “picture below” is working at a depth where the pressure is 3.0 atmospheres.He is breathing out air bubbles.The volume of each air bubble is 2cm2. .At the surface the pressure is 1 atmosphere. What is the volume of each air bubble when it reaches the surface ?

A. 8cm3

B. 6cm3

C. 10cm3

D. 12cm3

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Correct Answer » B Explanation

The person involved in an activity as shown in the picture above represents scuba diving which is one of the real life applications of boyle’s law.

According to boyle’s law-

P1 X V1 = P2 X V2.

Hence, now after putting the numbers-

1.0 X 2 = 3.0 X V2.

Now, rearrange the numbers so that we have V2 on one side and the rest of the numbers on the other side of the equals symbol.

V2 = 3.0 X 2/ 1.0.

V2 = 6cm3.