One mole of a monatomic ideal gas undergoes a reversible expansion at constant pressure, during which the entropy of the gas increases by 14.41 j/k and the gas absorbs 6236 j of thermal energy. calculate the initial and final temperatures of the gas. one mole of a second monatomic ideal gas undergoes a reversible isothermal expansion, during which it doubles its volume, performs 1729 j of work, and increases its entropy by 5.763 j/k. calculate the temperature at which the expansion was conducted.