Which of the following statements describes a scientific law? a. a scientific law explains a set of events. b. a scientific law describes what occurs every time in a situation. c. a scientific law is constantly modified. d. a scientific law is developed without experimentation. select the best answer from the choices provided

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat