I'm given a container of volume of 4.0 Litres that containes Nitrogen at $25 ^\circ C $ and 803 kPa. This container is connected by a valve to another container of 10.0 litres volume that containes Aragon at $25 ^\circ C $ and $47.2 kPa $ .
We now open the valve so that the two gas are mixing .
I need to calculate the partial pressure of every gas after the mixing and the total pressure of the mixture.
My question is - using the Dalton's law of partial pressures , isn't the partial pressure of every gas if excatly $803 kPa $ and $ 47.2 kPa $ and the total pressure if $ 803+47.2 kPa$ ?
What am I missing here?