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NEET 2011
Exam
NEET
Year
2011
Subject
Chemistry
Chapter
States of Matter

NEET 2011 · Chemistry · States of Matter

A bubble of air is underwater at temperature 15^ C and the pressure...

A bubble of air is underwater at temperature 15∘C15^{\circ} \mathrm{C} and the pressure 1.5 bar1.5 \mathrm{~bar}. If the bubble rises to the surface where the temperature is 25∘C25^{\circ} \mathrm{C} and the pressure is 1.0 bar1.0 \mathrm{~bar}, what will happen to the volume of the bubble?

Options

  1. AVolume will become greater by a factor of 1.6
  2. BVolume will become greater by a factor of 1.1
  3. CVolume will become smaller by a factor of 0.70
  4. DVolume will become greater by a factor of 2.9

Correct answer

A. Volume will become greater by a factor of 1.6

Step-by-step solution

∵p1V1T1=p2V2T2\because \quad \frac{p_1 V_1}{T_1}=\frac{p_2 V_2}{T_2} (By ideal gas equation) or 1.5×V1288=1×V2298\frac{1.5 \times V_1}{288}=\frac{1 \times V_2}{298} ∴V2=1.55V1\therefore \quad V_2=1.55 V_1 i.e., volume of bubble will be almost 1.6 times to initial volume of bubble.
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