A cylinder contains 18 moles of a momatomic ideal gas at a constant pressure of 160 kpa. a) how much work does the gas do as it expands 3200cm^3, from 5400cm^3 to 8600cm^3? b) if the gas expands by 3200cm^3 again, this time from 2200cm^3 to 5400cm^3, is the work it does greater than, less than, or equal to the work found in part a) explain. c) calculate the work done as the gas expands from 2200cm^3 to 5400cm^3.