2. Draw the following the energy diagrams: a. exothermic reaction with small activation energy b. endothermic...
3. Energy Diagrams: Using the axes below, draw an energy diagram for an endothermic reaction. Label the following in your diagram: The reactants "The products "The activation energy "The total energy gained or lost by the reaction (AH) reaction progress
Label the energy diagrams with the following: Reactants, Products, Activation energy (include arrow) Heat absorbed or Heat released (include arrow) Potential Energy Potential Energy Reaction Progress Exothermic reaction Reaction Progress Endothermic reaction
Which of the following is true regarding endothermic and exothermic reactions? a reaction which releases energy is exothermic areaction which absorbs energy is endothermic in an exothermic reaction, heat is released in an endothermic reaction, heat is absorbed all of the above are true Oonly a andc are true only b and d are true
Is the following reaction endothermic or exothermic?
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Is the following reaction endothermic or exothermic ? CH4 (g) + O2 (g) + CO2(g) + H20 (g) + energy endothermic, energy is given off by the reaction AH = (+) value exothermic, energy is absorbed by the reaction exothermic, energy is given off by the reaction endothermic, energy is absorbed by the reaction
Model 1 - Potential Energy Diagrams 1) The energy (enthalpy) change of a reaction can be determined by the following expression: Activated Complex Transition State AH = Energy products - Energy reactants Activation Energy, E Reactants Consider the energy change for the reaction in Model 1 (the graph to the left). Potential Energy (kJ/mol) Energy change (AH) Products a) The energy change shown is (positive/negative). b) This reaction is (endothermic / exothermic). c) These (reactants / transition state) has more...
4. Which of the following energy diagrams corresponds to a one-step exothermic reaction with a high energy of activation? nat A. A B.B C.C D.D E. E
Consider the two reaction progress diagrams below: Activated complex Activated complex Potential energy Potential energy Reaction coordinate Reaction coordinate a) Which diagram (left or right) represents an exothermic reaction? Which represents an endothermic reaction? Explain. b) Does a positive activation energy (E,> 0 always denote an endothermic reaction? Explain
3.a. Draw an energy diagram for an endothermic reaction with an activation energy of 300 kcals/mole and an energy of reaction of 200 kcals/mole. (5 points) b. A researcher at GCC is running a new chemical reaction that obeys first order kinetics and discovers that after 24 hours only % of the reactants are turned into products. How long will it take in hours for 90% of the reactants to be reacted? (5 points)
4. An endothermic reaction A - B has an activation energy of 15 kcal/ mole and the energy of reaction is 5 kcal/ mole. The activation energy for the reaction B - A is:
The following diagram shows the energy of a reaction as the reaction progresses. Label each of the following in the energy diagram by matching and answer whether this reaction is endothermic or exothermic. 1 [ Choose ] product reactant endothermic exothermic enthalpy of reaction activation energy activated complex (transition state) 2 [ Choose...