1. The problem statement, all variables and given/known data A vertical cylinder of cross-sectional area .07 m^2 is fitted with a tight-fitting, frictionless piston of mass 30 kg. The acceleration of gravity is 9.8 m/s^s. If there are 1 mol of an ideal gas in the cylinder at 395 K, find the pressure inside the cylinder. (Assume that the system is in equilibrium.) Answer in units of Pa. At what height will the piston be in equilibrium under its own weight? Answer in units of m. 2. Relevant equations PV=nRT P=Pressure V=Volume T=Temperature n=# of moles R (universal)= 8.31 J/mol/K 3. The attempt at a solution I have no idea... =( Volume isn't given.. and I don't know how to factor in the weight of the piston on the cylinder.. And please do not ask me to refer to my textbook, this is a summer assignment and we don't have any textbooks to use.