A0.04 tank initially contains air at ambient conditions of 100 kpa and . now, a 14-liter tank containing liquid water at is placed into the tank without causing any air to escape. after some heat transfer from the water to the air and the surroundings, both the air and water are measured to be at . determine (a) the amount of heat lost to the surroundings and (b) the exergy destruction during this process.

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.

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

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