6 4 WP SS Using the appropriate tables determine the change in specific entropy between the specified states in Btu lb R Show the states on a sketch of the T s diagram a water p 10 lbf in saturated vapor p2 500 lbf in T 700 F b ammonia p 140 lbf in T 160 F T 10 F h 590 Btu lb c air as an ideal gas T 80 F p 1 atm T 340 F p 5 atm d oxygen as an ideal gas T T 520 R p 10 atm p