(a) Specify the orifice diameter for metering 100,000 cubic feet (at 60F and 1 atm) per hour of propane gas, flowing through a pipe 12 inches in diameter at a pressure of 10 psig and 80F. The reading across the orifice should not be more than 5 in of Hg. Calculate also the power consumption of the orifice meter. (b) Repeat, assuming a venturi meter is used instead of an orifice