Water and N2 is mixed together in a container, dissolved amount of N2 is negligible (the container is lid by a piston).
1. Initially, total pressure (N2+water) inside container and vapour pressure of H2O are given. Find partial pressure of N2
2. Later, press down the container to reduce its volume, then find new pressure at constant T
Do I have to use Raoult's law? or it's just Total Pressure = Partial Pressure of N2 + vapour pressure of H2O
For 2nd; P(of total, before pressing)V(before pressing) = P(after pressing)V(after pressing)
are these methods correct?