You pump 25.0 liters of air at atmospheric pressure (101.3 kPa) into a soccer ball that has the volume of 4.50 liters. What is the pressure inside the soccer ball if the temperature does not change?

Respuesta :

Answer:

562.8 kPa

Explanation:

We can solve the problem by using Boyle's law, which states that the product between the pressure of a gas kept at constant temperature and its volume is constant:

[tex]p V = const.[/tex]

which can also be written as

[tex]p_1 V_1 = p_2 V_2[/tex]

In this problem:

[tex]p_1 = 101.3 kPa[/tex] is the initial pressure of the gas

[tex]V_1 = 25.0 L[/tex] is the initial volume

Later, the gas is pumped into a volume of

[tex]V_2 = 4.5 L[/tex]

So we can use the equation above to find [tex]p_2[/tex], the final pressure of the gas when it is inside the ball:

[tex]p_2 = \frac{p_1 V_1}{V_2}=\frac{(101.3)(25.0)}{4.5}=562.8 kPa[/tex]

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