3. One mole of air is compressed isothermally at 300K from oneatmosphere to fifteen atmospheres. Â
a) Calculate the amount of work required in the compression.
b) How much heat must be added or removed from the gas to maintainits temperature at 300K. Â
c) Does the enthalpy of the gas change? If so, how much?
d) Does the entropy of the gas change? If so, howmuch? Â
DATA: You may assume that air is an ideal gas with a constantvolume heat capacity of 5/2R
