Ahorizontal piston-cylinder is used to expand 3 mol of air from 5 bar to 1 bar isothermally at 300 k. if 10 kj of heat is added to achieve this expansion and assuming the gas is ideal, find: (a) the work produced. (b) the entropy generation. (c) the lost work. (d) would the heat required be less, equal, or more if the process were reversible? explain your answer with relevant supporting equations.

Why are gamma rays not affected by a magnet as they pass over it? gamma rays are composed of only energy. gamma rays do not have enough mass to be affected. gamma rays do not have the right electrical charge to be affected. gamma rays move too fast for anything to affect their pathway.

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

What does the cell nucleus do or, how does it function?