An organic free-range chicken farmer makes sure that everything that the chicken eats is without antibiotics or chemicals.

a) true
b) false

Apossible explanation for a set of facts that can be tested by further investigation is called

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

When an object is heated it contracts. a. true b. false