(a)
Interpretation:
The unit of rate constant for the zero order reactionhas to be determined.
Concept Introduction:
According to the rate law, the rate of the reaction is directly proportional to the initial concentration of the reactant of the reaction. The overall order of the reaction is the sum of the order of all the reaction in the
(b)
Interpretation:
The unit of rate constant for the first order reaction has to be determined.
Concept Introduction:
Same as part (a).
(c)
Interpretation:
The unit of rate constant for the second order reaction has to be determined.
Concept Introduction:
Same as part (a).
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ACHIEVE/CHEMICAL PRINCIPLES ACCESS 1TERM
- The hydrolysis of the sugar sucrose to the sugars glucose and fructose, C12H22O11+H2OC6H12O6+C6H12O6 follows a first-order rate equation for the disappearance of sucrose: Rate =k[C12H22O11] (The products of the reaction, glucose and fructose, have the same molecular formulas but differ in the arrangement of the atoms in their molecules.) (a) In neutral solution, k=2.11011s1 at 27 C and 8.51011s1 at 37 C. Determine the activation energy, the frequency factor, and the rate constant for this equation at 47 C (assuming the kinetics remain consistent with the Arrhenius equation at this temperature). (b) When a solution of sucrose with an initial concentration of 0.150 M reaches equilibrium, the concentration of sucrose is 1.65107M . How long will it take the solution to reach equilibrium at 27 C in the absence of a catalyst? Because the concentration of sucrose at equilibrium is so low, assume that the reaction is irreversible. (c) Why does assuming that the reaction is irreversible simplify the calculation in pan (b)?arrow_forwardDefine stability from both a kinetic and thermodynamic perspective. Give examples to show the differences in these concepts.arrow_forwardIf a reaction has the same rate constant, what time does it take for a reactant to decrease by 5 that is, still near the beginning of the reaction process if the kinetics are zeroth-order, first-order, and second-order with respect to that reactant?arrow_forward
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