If the gas in an open vessel is heated what will be the relation between its temperature and mass of the gas in the container?

If the gas in an open vessel is heated what will be the relation betwe

1.	If the gas in an open vessel is heated what will be the relation between its temperature and mass of the gas in the container?
Answer» SOLUTION :When temperature increases some of the GAS flows out of the container which is to be kept OPEN to maintain PRESSURE constant. Mass of the gas in the container is inversely proportional to its temperature on Kelvin Scale.