1) Compare the two beakers that contain water. Which of these statements is NOT true if the beaker on the left represents an open
system
A)
Evaporation can occur.
B) All the energy remains in the system.
C) Water molecules leave the system.
D) The net movement of molecules is out of the water.

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

In a system, when potential energy decreases, then entropy also decreases. true false