4. An endothermic reaction A - B has an activation energy of 15 kcal/ mole and...
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)
2. Draw the following the energy diagrams: a. exothermic reaction with small activation energy b. endothermic reaction with large activation energy c. exothermic reaction with large activation energy d. endothermic reaction with small activation energy
D ⇌ E + F DeltaG = -100 kCal mol-1; Activation energy = 5 kCal mol-1 A+ B ⇌ F DeltaG = +30 kCal mol-1; Activation energy = 10 kCal mol-1 We can couple these two reactions to carry out the overall reaction. What is the overall reaction and What is the change in free energy of the overall reaction?
The standard free energy of activation of a reaction A is 71.6 kJ mol–1 (17.1 kcal mol–1) at 298 K. Reaction B is one million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ mol–1 (2.39 kcal mol–1) more stable than the reactants. (a) What is the standard free energy of activation of reaction B?
The standard free energy of activation of a reaction A is 77.3
kJ mol–1 (18.5 kcal mol–1) at 298 K. Reaction B is ten million
times faster than reaction A at the same temperature. The products
of each reaction are 10.0 kJ mol–1 (2.39 kcal mol–1) more stable
than the reactants. (a) What is the standard free energy of
activation of reaction B?
25 20 15 B Free Energy (kcal/mol) 10 tions A 5 e 0 Reaction progress Use the reaction energy diagram above to answer the following questions. Calculate the activation energy, AG #, for the step B to C. Include algebraic sign.[ kcal/mol Calculate the overall energy change, AGO, for the process A to B. Include algebraic sign. kcal/mol Which step is faster, (a) C to B or (b) B to A?
25 20 15 Free Energy (kcal/mol) M B 10 r 5 0 Reaction progress Use the reaction energy diagram above to answer the following questions, Calculate the activation energy. AG #, for the step C to B. Include algebraic sign. Calculate the overall energy change, AG®, for the process to D. Include algebraic sign. Which step is faster, (a) to A or (b) A to B? O a Ob kcal/mol kcal/mol Submit Submit and Next : Mark this question for...
For an endothermic forward reaction (ΔHforward>0 ), the activation energy of the reverse reaction will be equal to: Select the correct answer below: Ea of the forward reaction Ea of the forward reaction plus ΔHforward. Ea of the forward reaction minus ΔHforward none of the above
Free Energy (kcal/mol) Reaction progress- Use the reaction energy diagram above to answer the following questions. Calculate the activation energy, AG * , for the step D to C. kcal/mol Calculate the overall energy change, AGⓇ, for the process B to A. kcal/mol Which step is faster, (a) B to A or (b) C to D? - Free Energy (kcal/mol) Reaction progress - Use the reaction energy diagram above to answer the following questions. Calculate the activation energy, AG ,...
For the combustion reaction of propane, C3Hs, the AH -530 kcal/mol a. the reaction is (neutral / endothermic / exothermic / catalyzed) b. how much energy is released when 1.00 kg propane is burned?