contestada

What pressure is required to reduce the volume
of gases in a car's cylinder from 48cm3 at
102 kPa to 5.2 cm3?

Respuesta :

Answer:

941.4 kPa

Explanation:

To solve this problem, we can use Boyle's Law, which states that:

"For a fixed mass of an ideal gas kept at constant temperature, the pressure of the gas is inversely proportional to its volume"

Mathematically:

[tex]p\propto \frac{1}{V}[/tex]

where

p is the pressure of the gas

V is its volume

For a gas transformation, the equation can be rewritten as

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

where in this problem:

[tex]p_1 = 102 kPa[/tex] is the initial pressure

[tex]V_1=48 cm^3[/tex] is the initial volume

[tex]V_2=5.2 cm^3[/tex] is the final volume

Solving for p2, we find the  final pressure:

[tex]p_2 = \frac{p_1 V_1}{V_2}=\frac{(102)(48)}{5.2}=941.5 kPa[/tex]