Explore the dynamics of chemical reactions with this IBSL Chemistry quiz focused on Kinematics. Assess your understanding of reaction rates, effects of concentration, temperature, and catalysts on these rates. Ideal for students seeking to enhance their knowledge in chemical kinetics.
I only
II only
Both I and II
Neither I nor II
Rate this question:
Increasing the temperature.
Increasing the concentration of reactants
Increasing the activation energy.
Increasing the surface area of the reactants.
Rate this question:
The molecules do not collide in the proper ratio
The molecules do not have enough energy
The concentration is too low
The reaction is at equilibrium
Rate this question:
10ml of 1.0 mol dm-3 HCl(aq) at 25oC
10ml of 2.0 mol dm-3 HCl(aq) at 35 oC
10ml of 2.0 mol dm-3 HCl(aq) at 25oC
10ml of 1.0 mol dm-3 HCl(aq) at 35oC
Rate this question:
1 mol dm-3 HCl and CaCO3 pieces
2 mol dm-3 HCl and CaCO3 pieces
1 mol dm-3 HCl and CaCO3 powder
2 mol dm-3 HCl and CaCO3 power
Rate this question:
The molecules do not collide in the proper ratio.
The concentration is too low.
The molecules do not have enough energy.
The reaction is at equilibrium.
Rate this question:
The concentration of oxygen is much lower than that of nitrogen
The molar mass of nitrogen is less than that of oxygen
The frequency of collisions between nitrogen and oxygen molecules is lower than that between nitrogen molecules themselves
Very few nitrogen and oxygen molecules have sufficient energy to react
Rate this question:
The frequency of the molecular collisions increases
The activation energy increases
The average kinetic energy of the molecule increases
The rate constant increases
Rate this question:
Changing the enthalpy of the reaction.
Increasing the number of collisions between the reactant molecules in a given time.
Increasing the fraction of reactant molecules with a given kinetic energy.
Providing a different reaction pathway.
Rate this question:
Mg powder and 100 cm3 of 1 mol. dm-3 HCl
Mg powder and 50 cm3 of 0.8 mol. dm-3 HCl
100 cm3 of 1 mol dm-3 HCl at 30 C
50 cm3 of 1.2 mol dm-3 HCl at 30 C
Rate this question:
Mol dm-3
Mol time-1
Dm3 time -1
Mol dm-3 time-1
Rate this question:
The rate of the reaction increases with time.
The concentration of the acid decreases with time.
The reaction is reversible.
The reaction is exothermic.
Rate this question:
I only
II only
Both I and II
Neither I nor II
Rate this question:
I only
II only
I and II only
I, II and III
Rate this question:
Mg powder and 100 cm3of 1 mol dm-3 HCl
Mg powder and 50 cm3 of 0.8 mol dm-3 HCl
100 cm3 of 1 mol dm-3 HCl at 30° C
50 cm3 of 1.2 mol dm-3 HCl at 30° C
Rate this question:
Increasing temperature increases the collision frequency and adding a catalyst increases the activation energy
Increasing temperature increases the activation energy and adding a catalyst does not change the activation energy
Increasing temperature does not change the activation energy and adding a catalyst decreases the activation energy
Increasing temperature increases the activation energy and adding a catalyst increases the collision frequency
Rate this question:
The volume of HCl is increased.
The concentration of HCl is decreased.
The size of the CaCO3 solid particles is decreased.
The pressure of the CO2 is increased. The pressure of the CO2 is increased.
Rate this question:
The rate increases with time because the calcium carbonate particles get smaller
The rate increases with time because the acid becomes more dilute
The rate decreases with time because the calcium carbonate particles gets smaller
The rate decreases with time because the acid becomes more dilute
Rate this question:
I only
II only
III only
I and III only
Rate this question:
I only
I and III only
II and III only
I, II and III
Rate this question:
I and II only
I and III only
II and III only
I, II,III
Rate this question:
The concentrations of the reactants increase.
The molecules collide more frequently.
The pressure exerted by the molecules increases.
The fraction of molecules with the energy needed to react increases
Rate this question:
Raising the temperature
Diluting the solution
Adding a catalyst
Increasing the concentration of the sodium thiosulfate
Rate this question:
I only
II only
Both I and II
Neither I nor II
Rate this question:
Quiz Review Timeline (Updated): Mar 21, 2023 +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
Wait!
Here's an interesting quiz for you.