Chemistry Chemical Kinetics Temperature Dependence Rate Reaction Online Exam Quiz
Chemistry Chemical Kinetics Temperature Dependence Rate Reaction GK Quiz. Question and Answers related to Chemistry Chemical Kinetics Temperature Dependence Rate Reaction. MCQ (Multiple Choice Questions with answers about Chemistry Chemical Kinetics Temperature Dependence Rate Reaction
The activation energy of a reaction is 50 kJ mol-1 and the value of rate constant at 300 K is 2.5×10-5 sec-1. What is the value of the frequency factor, A?
Options
A : 4228.53 s-1
B : 3829.69 s-1
C : 7596.45 s-1
D : 6565.35 s-1
What is the value of rate constant k if the value of the activation energy Ea and the frequency factor A are 49 kJ / mol and 9 × 1010 s-1 respectively? (T = 313 K)
Options
A : 6 × 102 s-1
B : 9 × 102 s-1
C : 6 × 10-2 s-1
D : 3 × 102 s-1
The rate constant of a reaction is 6 × 10-3 s-1 at 50° and 9 × 10-3 s-1 at 100° C. Calculate the energy of activation of the reaction.
Options
A : 6.123 kJ mol-1
B : 8.124 kJ mol-1
C : 12.357 kJ mol-1
D : 18.256 kJ mol-1
Which of the following represents the Boltzmann factor?
Options
A : e-Ea
B : eEa
C : e-Ea/RT
D : eEa/RT
Which of the following is the correct Arrhenius equation?
Options
A : k = A eEa/RT
B : k = A eEa/T
C : k = A eEa/R
D : k = A e-Ea/RT
Which of the following is the correct expression for the temperature coefficient (n)?
Options
A : n = Rate constant at T + 10°/Rate constant at T°
B : n = Rate constant at T + 20°/Rate constant at T°
C : n = Rate constant at T + 30°/Rate constant at T°
D : n = Rate constant at T + 40°/Rate constant at T°
What is R in the equation k = Ae-Ea/RT?
Options
A : R = 8.314 J K-1 mol-1
B : R = 3.184 J K-1 mol-1
C : R = 4.318 J K-1 mol-1
D : R = 1.438 J K-1 mol-1
What happens to the peak of the curve in the Maxwell-Boltzmann distribution graph if temperature increases?
Options
A : Shifts forward and upward
B : Shifts forward and downward
C : Shifts backward and upward
D : Shifts backward and downward
The rate of a reaction depends on the temperature.
Options
A : True
B : False
C :
D :
The rate of reaction increases with a rise in temperature.
Options
A : True
B : False
C :
D :
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