My textbook "Thinking Like A Engineer" said "Chemical engineers are involved in the research and development, manufacture, sales, and use of chemicals, pharmaceuticals, electronic components, food and consumer goods, petroleum products, synthetic fibers and films, pulp and paper, and many other products." As we can see, chemical engineering actually refer to almost everywhere.
As chemical engineers, we not only need master chemistry knowledge well but also require physics and mathematics knowledge. Mathematics plays a significant role in all engineering field. It just likes a tool to help us and allow us to solve problem. A lot of formula is discovered with the help of mathematics. Conversely, we cannot get an answer if we only know the formula. Physics is also important. Actually, a lot of chemical things cover physics field. The boundary of this 2 subjects is unclear. So, if a person only know the chemistry, he cannot be a chemical engineer.
Also, in engineering filed, everything we act should be derive from a engineering perspective. In fact, it is impossible that engineers have unlimited resource. Our time, research funds and etc are restricted by different factors. Hence, the ability of how to do project more effectively, how to do project with the lowest cost and how to arrange research time optimally is indispensable.
