An ideal monatomic gas initially has a temperature of 275 K and a pressure of 7.50 atm. It is to expand from volume 537 cm3 to volume 1530 cm3. If the expansion is isothermal, what are (a) the final pressure and (b) the work done by the gas? If, instead, the expansion is adiabatic, what are (c) the final pressure and (d) the work done by the gas? (a) Number Units (b) Number Units (c) Number Units (d) Number Units