Determine the diameter, spacing and length of the tie bars required for a two lane concrete pavement 8 in. (203 mm) thick, 60 ft (18.3 m) long and 24 ft (7.3 m) wide

with a longitudinal joint at the center. = 186 MPa; = 25 kN/m3

; fa = 1.5.​

Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?