A plot of ln(k) versus 1/T for a chemical reaction yields a straight line. The slope of this line is related to:
Gibbs free energy change
Enthalpy change
Activation energy
Equilibrium constant
Related Questions
For the reaction, , the active mass of B is kept constant, and that of A is doubled. The rate of reaction will be then
Decrease 4 times
Decrease 2 times
Increase 4 times
Increase 2 times
The rate of a reaction triples when the temperature changes from to . Calculate the energy of activation. Given: ,
43.26 kJ/mol
52.87 kJ/mol
34.71 kJ/mol
61.54 kJ/mol
Arrhenius equation may not be represented as
k = A * e^(-Ea/RT)
ln k = ln A - Ea/RT
ln(k2/k1) = Ea/R * (1/T1 - 1/T2)
k = A * e^(Ea/RT)
For the reaction system
if the volume of the reaction vessel is reduced to one-third of its original volume, what will be the order of the reaction?
Increases
Decreases
Remains unchanged
Becomes zero
In Arrhenius equation , the quantity is referred as:
Boltzmann factor
Frequency factor
Activation factor
None of these
In a gaseous phase reaction:
the increase in pressure from is noticed in 5 minute. The rate of disappearance of is:
4
8
16
12
For a reaction , rate of disappearance of βAβ is related to the rate of appearance of B by the expression
r_B = 4r_A
r_B = 2r_A
r_B = r_A/2
r_B = r_A/4
The half-life of a first-order reaction is 200 seconds. If the initial concentration of the reactant is , what will be the concentration after 600 seconds?
0.2 M
0.1 M
0.025 M
0.05 M
The rate constant is given by the equation which factor should register a decrease for the reaction to proceed more rapidly?
T
Z
A
For a reaction A + B β C, the rate law is found to be Rate = k[A]Β²[B]β»ΒΉ. If the concentration of A is tripled while keeping the concentration of B constant, the factor by which the reaction rate changes is:
3
1/3
1/9
9