Answer:
(4) 230 kPa
Explanation:
The temperature is constant, so the only variables are pressure and volume.
We can use Boyle’s Law.
[tex]p_{1}V_{1} = p_{2}V_{2}[/tex]
Divide both sides of the equation by [tex]V_{2}[/tex].
[tex]p_{2} = p_{1} \times \frac{V_{1}}{ V_{2}}[/tex]
[tex]p_{1} = \text{145 kPa}; V_{1} = \text{125 cm}^{3}}[/tex]
[tex]p_{2} = ?; V_{2} = \text{80. cm}^{3}[/tex]
[tex]p_{2} = \text{145 kPa} \times \frac{\text{125 cm}^{3}}{\text{80. cm}^{3}} = \textbf{230 kPa}[/tex]
