A steam power plant operating on the simple ideal Rankine cycle is considered. The total net work produced by the cycle is 700 kJ/kg, and the amount of heat input to the cycle is 3000 kJ/kg. Determine the thermal efficiency of this cycle. Multiple choice question.

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.

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.