Apiston-cylinder arrangement contains air modeled as an ideal gas with constant specific heat ration of k =1.4. the air undergoes a power cycle consisting of four processes in series: process 1 to 2: constant temperature expansion at 600 k from p_1 = 0.5 mpa to p_2 = 0.4 mpa. process 2 to 3: polytrophic expansion with n = k to p_3 = 0.3 mpa process 3 to 4: constant pressure compression to v_4 =v_1 process 4 to 1: constant volume heating. sketch the cycle on a p-v diagram. determine (a) the work and heat transfer of each process in kj/kg and (b) the thermal efficiency.

Ascientist is working with a new kind of quantum dot to make a dye. he is applying newton’s laws to the particle, but it seems to be breaking these laws of physics. which action will most likely the scientist study the particle’s motion? a. he needs to remember that the particle is too large for quantum analysis. b. he must continue to use newtonian mechanics, but he needs to learn more about the particle. c. he needs to use quantum mechanics, not newtonian mechanics, because this is a nanotechnology product. d. he must determine new physical laws that only apply to quantum dots.