Question

According to the ideal gas law, what happens to the volume of a gas when the number of moles doubles (all else held constant)?

Answer 1

As moles double, the volume also doubles.

Answer 2

Answer: volume will double when no of moles doubles

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 = v

`V_2` = final volume of gas = ?

`n_1` = initial number of moles = n

`n_2` = final number of moles = 2n

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

`(v)/(n)=(V_2)/(2n)`

`V_2=2v`

Therefore, the volume of the gas will also double.