Question

A balloon that contains 0.750 moles of gas has a volume of 16.8 l. if the balloon expands to a volume of 25.4 l at a constant pressure and temperature, how many moles of gas would the balloon contain? 0.496 mol 0.882 mol 1.13 mol 6.45 mol

Answer 1

The answer is 1.13 mol

Answer 2

Answer: 1.13 mol

Explanation:

Avogadro's Law: This law states that volume is directly proportional to the number of moles of the gas at constant pressure and temperature.

`V\propto n` (At constant temperature and pressure)

`(V_1)/(n_1)=(V_2)/(n_2)`

where,

`V_1` = initial volume of gas = 16.8 L

`V_2` = final volume of gas = 25.4 L

`n_1` = initial number of moles = 0.750

`n_2` = final number of moles = ?

Now put all the given values in the above equation, we get the final pressure of gas.

`(16.8)/(0.750)=(25.4)/(n_2)`

`n_2=1.13`

Therefore, the final moles will be 1.13.