Master's in Chemical Engineering

So I am currently in the junior year of my undergraduate degree. I am majoring in chemistry and minoring in physics. After college I plan on going into the Air Force for a variety of reasons. One of these reasons is that they pay for their officers to attend master’s programs. I am starting to think about what type of master’s program I would want to enroll in. I’m thinking about chemical engineering. My question is, how hard or easy would the transition from the chemistry and physics to chemical engineering be?

what uni