The form of energy that is stored in large objects because of its internal condition, such as compression or tension, is called _ _ energy.

The first blank is "mechanical energy" The second blank is "chemical energy" and the last blank space would be "potential energy"

So in order of 1st to last blank its "mechanical" "chemical" and "potential"

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.