Apiston–cylinder device with a set of stops initially contains 0.6 kg of steam at 1.0 mpa and 400°c. the location of the stops corresponds to 40 percent of the initial volume. now the steam is cooled. determine the compression work if the final state is (a) 1.0 mpa and 250°c and (b) 500 kpa. (c) also determine the temperature at the final state in part (b).

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

Ahair dryer is basically a duct in which a few layers of electric resistors are placed. a small fan pulls the air in and forces it through the resistors where it is heated. air enters a 1200 w hair dryer at 100 kpa and 22°c and leaves at 47°c. the cross-sectional area of the hair dryer at the exit is 60 cm2. neglecting the power consumed by the fan and the heat losses through the walls of the hair dryer, determine (a) the volume flow rate of air at the inlet and (b) the velocity of the air at the exit.

What word chemical equation describes cavendish’s experiment with zinc?