As a substance changes phase from a gas to a liquid to a solid, with the exception of h2o, the molecules become closer together? true or false

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

answer seismograph;