A sample of carbon dioxide gas occupies a volume of 20 L at standard temperature and pressure (STP). What will be the volume of a sample of argon gas that has the same number of moles and pressure but twice the absolute temperature?

10 L

20 L

40 L

80 L

Respuesta :

znk

Answer:

40 L

Explanation:

The pressure and number of moles are constant.

The only variables are volume and temperature, so we can use Charles’ Law.

[tex]\frac{V_{1}}{T_{1}}= \frac{V_{2}}{T_{2}}[/tex]

We can solve this equation to get

[tex]V_{2} = V_{1} \times \frac{ T_{2}}{ T_{1}}[/tex]

[tex]V_{1} = \text{20 L}; T_{1} = T_{1}[/tex]

[tex]V_{2} = ?; T_{2} =2T_{1}[/tex]

[tex]V_{2} = \text{20 L} \times \frac{2T_{1}}{T_{1}} = \textbf{40 L}[/tex]