PPT-Chemical Reaction Engineering

CRE is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place Lecture 23 Web Lecture 23 Class Lecture 21 Tuesday 3222011. (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture 1. 1. Today’s lecture. Introduction. Definitions . Chemical change. . Reactions with acid. . Reactions with oxygen . 7F. 7F Simple chemical reactions. Chemical change. . 7F Simple chemical reactions. 7F Chemical change – Changing materials. How many different materials can you see in this bedroom?. Chemical Reactions. Investigation One. Chemical compounds are formed when two or more elements combine.. H. ₂ + O .  H₂O (water). Na + . Cl.  . NaCl. ( Sodium Chloride – Salt). Chemical Compounds. 10/20/14. What are Physical Properties?. Physical properties can be . observed. and measured without changing the . identity. of the substance. . Phase. Changes: . Melting. Point: the temperature at which a substance . Because . entropy is a state function, . the property is what it is regardless of pathway, the . entropy change for a given reaction can be calculated by taking the difference between the . standard entropy. Andy Stoker. Process Safety Consultant. Why think about Chemical Engineering?. WWW.WHYNOTCHEMENG.COM. Benefits include……. Make a real contribution to a sustainable future . Interesting challenges. (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture 18. Web Lecture 18. Class Lecture 23 – Tuesday 4/5/2011. (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture 17. Web Lecture 17. Class Lecture 22–Thursday 4/4/2013. (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture 18. Web Lecture 18. Class . Lecture . 23–Tuesday. Catalytic Mechanisms . Summer Math Institute 2012. Amber M. Hupp. Assistant Professor, Chemistry. College of the Holy Cross. Modified from P.W.W. Hunter, “Chemistry Laboratory Manual (CHEM 162)”, Michigan State University. Color change. Increase or decrease in temperature. Gas production (not boiling). Precipitation: 2 liquids react to make a solid. Change in properties (density, smell, taste, texture, melting points, boiling points, hardness, etc.). Evidence of a chemical reaction includes:. Chemical Reaction. 1) Change in color / light. 2) Change in temperature. Evidence of a chemical reaction includes:. Chemical Reaction. 1) Change in color / light. Stoichiometry. (identity and relative amounts of reactants and products).. Spontaneity (feasibility of the reaction, based on thermodynamics).. Speed…KINETICS (reaction rates).. Stopping…when will the reaction stop? (Equilibrium-next chapter). Chemical Reactions. Chemical reactions occur every minute of every day. . Some are very fast, such as the reaction of sodium with water. . Others are very slow, such as iron rusting. . Some are somewhere in-between, such as milk going sour. .