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3. One mole of air is compressed isothermally at 300K from one atmosphere to fifteen atmospheres.   a)...

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Mechanical Engineering

3. One mole of air is compressed isothermally at 300K from oneatmosphere to fifteen atmospheres.  
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.  
c) Does the enthalpy of the gas change? If so, how much?
d) Does the entropy of the gas change? If so, howmuch?  
DATA: You may assume that air is an ideal gas with a constantvolume heat capacity of 5/2R

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