We can use the ideal gas
equation which is expressed as PV = nRT. At a constant temperature and number
of moles of the gas the product of PV is equal to some constant. At another set
of condition of temperature, the constant is still the same. Calculations are
as follows:
P1V1 =P2V2
P2 = P1 x V1 / V2
P2 = 139 x .333 / 0.553
P2 =83.70 mmHg ( 1 atm / 760 mmHg ) = 0.1 atm
