PPT-Chemical Reaction Engineering II

CHE424 Note 6 1 Dr A Okullo The problems associated with the mixing of fluids during reaction is important for extremely fast reactions in homogeneous systems as well as for all heterogeneous systems. (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 . SAND No. 2012-1608C. Introduction. Chemical reactivity hazard:. A situation with the potential for an . uncontrolled chemical reaction. . that can result directly or indirectly in serious harm to people, property and/or the environment.. 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 . EVIDENCE of a CHEMICAL REACTION . (aka a . CHEMICAL CHANGE. ). . . . . . T. he decomposition of hydrogen peroxide H. 2. O. 2. . !!. 2 H. 2. O. 2. . . 2 H. 2. O + . O. 2. http. ://. www.youtube.com/watch?v=4N0m95PExHY. BY NISH DILLON. PRETTY EYESZ. http://www.chemistryexplained.com/images/chfa_01_img0184.jpg. Chemical Reaction basics. Chemical Reaction- When substances change chemically to form a new substance.. 1. Forms new bonds between atoms.. Equations, and Reactions. Chemical Change:. Occurs when one or more substances are changed into new substances with different properties; cannot be undone by physical means. Chemical Change is:. Chemical Change is not:. (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. Lecture 1 – . Thursday. 2. Introduction. Definitions . (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 1. 1. Lecture 1 – . Thursday. 2. Introduction. Definitions . (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 . 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. . Nikhil . Gopalkrishnan. (From presentation of Chen, Doty, . Soloveichik. , Deterministic Function Computation with Chemical Reaction Networks.). (From presentation of Chen, Doty, . Soloveichik. , Deterministic Function Computation with Chemical Reaction Networks.).