Expand 1.00 mol of a monatomic gas, initially at 3.60 kPa and313 K, from initial volume Vi = 0.723m3 to final volume Vf = 2.70m3. At any instant during the expansion, the pressurep and volume V of the gas are related byp = 3.60 exp[(Vi -V)/a], with p in kilopascals,Vi and V are in cubic meters, anda = 2.10 m3. What are the final(a) pressure and (b)temperatureof the gas? (c) How much work is done by the gasduring the expansion? (d) What is the change inentropy of the gas for the expansion? (Hint: Use twosimple reversible processes to find the entropy change.)
