What is the capacity of a 1 ½” schedule 40 natural gas line with an inlet pressure of 3 psi, a length of 75′, a pressure drop of 2 psi and a gas specific gravity of .60?

What is the capacity of a 1 ½” schedule 40 natural gas line with an inlet pressure of 3 psi, a length of 75′, a pressure drop of 2 psi and a gas specific gravity of .60?