Q4. 3. The kinetics of the reaction A+B- C, proceeding at constant volume and T=
ID: 558293 • Letter: Q
Question
Q4. 3. The kinetics of the reaction A+B- C, proceeding at constant volume and T=300 K was studied by measuring the total pressure as a function of time. The initial mixture of the reactants in the vessel was equimolar. The following data were obtained 5 0.8880.818 15 0.769 21 0.7260.663 10 0 0.953 30 t (min) p (atm) Determine the overall order of this reaction. 1) Is the reaction in above Q4 an elementary reaction, and why? 2) If the temperature is increased to 350 K, how long do you expect the pressure would decrease by 20%? Assume the reaction has an activation energy of 200 kJ/mol.Explanation / Answer
SOlUTION:-
1.) Yes,The above reaction is a Bimolecular elementary Reaction because in this type of reaction is an elementary reaction is a chemical reaction in which one or more chemical species react directly to form products in a single reaction step and with a single transition state. In practice, a reaction is assumed to be elementary if no reaction intermediates have been detected or need to be postulated to describe the reaction on a molecular scale.
2.) Ea = R ln( t/(1/T1 - 1/T2)
Ea = Activation energy
R = Gas constant
t = Ratio of time
200 = 8.314 ln(t/1)/(1/300 - 1/350)
t = 1.0280 min
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.