A sample of nitrogen gas occupies 2.49 L at 19.5°C. The volume of the container changes at constant pressure to 4.29 L. What temperature (in°C) must the gas be to attain this volume?

Respuesta :

Answer : The final temperature of the gas must be [tex]33.596^oC[/tex]

Solution : Given,

Initial volume of gas = 2.49 L

Final volume of gas = 4.29 L

Initial temperature of gas = [tex]19.5^oC[/tex]

According to the Charles' law, the volume of gas is directly proportional to the temperature of the gas at constant pressure.

[tex]V\propto T[/tex]

[tex]\frac{V_1}{V_2}=\frac{T_1}{T_2}[/tex]

Now put all the given values in this formula, we get the final temperature of the gas.

[tex]\frac{2.49L}{4.29L}=\frac{19.5^oC}{T_2}[/tex]

By rearranging the term, we get

[tex]T_2==33.596^oC[/tex]

Therefore, the final temperature of the gas must be [tex]33.596^oC[/tex]