Aquantity of water within a piston-cylinder assembly executes a carnot power cycle. during isothermal expansion, the water is heated from saturated liquid at 50 bar until it is a saturated vapor. the vapor then expands adiabatically to a pressure of 5 bar while doing 364.31 kj/kg of work. evaluate the heat transfer per unit mass and work per unit mass for each process, in kj/kg.

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Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.