If you doubled the volume of a sample of gas and then double the volume again without changing its pressure how would the absolute temp of the gas be affected

Temperature increased four fold when the volume is doubled twice.

Explanation:

As per the Charles law, at constant pressure, without changing the pressure, the volume of the gas is in direct proportion with the temperature measured in Kelvin.

Here it is said that Volume of the sample is doubled twice so it becomes four fold and it is directly proportional to the temperature which is also increased four fold.

So the temperature of the sample increased four fold.