Define homogeneous.
a).composed of parts or elements that have similarities and differences
b).composed of parts or elements that are of a different kind
c).composed of parts or elements that are all of the same kind
d).composed of parts or elements that are neither similar nor different

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?