27
MCQ (Multiple Correct Answer)
According to Maxwell, Boltzmann distribution of energy, ............. .
A
the fraction of molecules with most probable kinetic energy decreases at higher temperatures
B
the fraction of molecules with most probable kinetic energy increases at higher temperatures
C
most probable kinetic energy increases at higher temperatures
D
most probable kinetic energy decreases at higher temperatures
28
MCQ (Multiple Correct Answer)
In the graph showing Maxwell, Boltzmann distribution of energy ............. .
A
area under the curve must not change with increase in temperature
B
area under the curve increases with increase in temperature
C
area under the curve decreases with increase in temperature
D
with increase in temperature curve broadens and shifts to the right hand side
29
MCQ (Multiple Correct Answer)
Which of the following statements are in accordance with the Arrhenius equation?
A
Rate of a reaction increases with increase in temperature
B
Rate of a reaction increases with decrease in activation energy
C
Rate constant decreases exponentially with increase in temperature
D
Rate of reaction decreases with decrease in activation energy
30
MCQ (Multiple Correct Answer)
Mark the incorrect statements.
A
Catalyst provides an alternative pathway to reaction mechanism
B
Catalyst raises the activation energy
C
Catalyst lowers the activation energy
D
Catalyst alters enthalpy change of the reaction
31
MCQ (Multiple Correct Answer)
Which of the following graphs is correct for a zero order reaction?
A
B
C
D
