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A balloon contains 2.0 L of air at 101.5 kPa . You squeeze the balloon to a volume of 0.25 L.

What is the pressure of air inside the balloon?


13 kPa

101 kPa

406 kPa

812 kPa

1 Answer

3 votes

Answer:

812 kPa

Step-by-step explanation:

  • According to Boyle's law pressure and volume of a fixed mass are inversely proportional at constant absolute temperature.
  • Mathematically,
    P\alpha (1)/(V)

At varying pressure and volume;

P1V1=P2V2

In this case;

Initial volume, V1 = 2.0 L

Initial pressure, P1 = 101.5 kPa

Final volume, V1 = 0.25 L

We are required to determine the new pressure;


P2=(P1V1)/(V2)

Replacing the known variables with the values;


P2=((101.5)(2.0L))/(0.25L)

= 812 kPa

Thus, the pressure of air inside the balloon after squeezing is 812 kPa

User Suresh Palemoni
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