Answer : The volume of the balloon will be, 0.494 liters
Solution :
Charles' Law : It is defined as the volume of the gas is directly proportional to the temperature of the gas at constant pressure and number of moles.
![V\propto T](https://img.qammunity.org/2020/formulas/chemistry/high-school/ex52vv3nyvdiyg3q5bspxziz008p7ttnt3.png)
or,
![(V_1)/(T_1)=(V_2)/(T_2)](https://img.qammunity.org/2020/formulas/chemistry/high-school/6at42jxs2ajn4p82btngc0vor0l6a3fqd8.png)
where,
= initial volume of gas = ?
= final volume of gas = 0.54 L
= initial temperature of gas = 273.15 K
= final temperature of gas = 298.5 K
Now put all the given values in the above equation, we get the initial volume of balloon.
![(V_1)/(273.15K)=(0.54L)/(298.5K)](https://img.qammunity.org/2020/formulas/chemistry/middle-school/wl7meo7kbpzywaj7nqfhsvm0bdrsaaptt2.png)
![V_1=0.494L](https://img.qammunity.org/2020/formulas/chemistry/middle-school/4wzxn3vyi6egkcctuh8k0smbzus9zknf48.png)
Therefore, the volume of the balloon will be, 0.494 liters