Plumbers, pipefitters, and steamfitters may be involved in a variety of maintenance and operations work, including: (Select all that apply.) maintaining septic systems. replacing oxygen pipes in hospitals. repairing cooling and heating systems in high-rise buildings. replacing faulty wiring.

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?