Energy of particles increase or decrease

Summarize possible ways in which phases of matter could combine to form a solution.

The same side of the moon always faces earth because the

What would be the original temperature of a gas that has a volume of 2.0 l and a pressure of 2.0 atm and an unknown temperature that the volume increased to 3.5 l in its pressure decreased to 1.0 atm if the final temperature is measured to be 11°c