Aheat engine operates between a source at 410°c and a sink at -12°c. if heat is supplied to the heat engine at a steady rate of1,150 kj/min, determine the maximum power output of this heat engine

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.