Use the drop-down menus to determine which state of matter is described in each statement. The atoms in a are closely packed, but able to slide past each other. The atoms in a spread as far apart as possible. A has a definite shape and volume. The shape of a can change, but the volume is definite.

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.