isothermal and adiabatic please help!!!! 1. The problem statement, all variables and given/known data Hello, I have been stuck on this problem for about an hour so any hep would be greatly appreciated! One mole of argon at 25 degrees C and 1 atm pressure is allowed to expand reversibly t a volume of 50 L (a) isothermally (b) adiabatically. Calculate the final pressure in each case assuming ideal gas behavior. The answers have been given and they are: (a) 0.489 atm and (b) 0.303 atm I can't get either a or b for some reason I don't know what I am doing wrong! Please help me :( 2. Relevant equations Cv = 3/2 R Cp= 5/2 R Boyle's law 3. The attempt at a solution my answers dont even come close...?