NEED HELP ASAP Which of the following is true about gases?
a. gas molecules are arranged in an orderly fashion
b. gas molecules are in constant motion
c. hydrogen and nitrogen are liquids at room temperature
d. a vapor is a solid at room temperature
The answer is B. Gas molecules are in Constant Motion.
This is supported by the Kinetic Theory of Gases, which it states that the gas particles are in constant random motion, colliding with the container that it's in.