INSTRUCTION:- Post your answers into the COMMENT or DISCUSSION BOX.
Chemical kinetics is concerned with ____ ?
(A). Measurement of heat of reactions
(B). Determination of the rate at which chemical reactions occur
(C). Measurement of entropy of reactions
(D). Determination of activation energy of reactions.
Which of the following is not one of the factors affecting the rate or speed of a chemical reaction?
(A). Temperature of reactants
(B). Color of reactants
(C). concentration of reactants
(D). Surface area of the reactants
According to chemical kinetics study, the rate of chemical reactions doubles at every ____ degrees rise in temperature?
According to kinetic theory, an increase in temperature of the reactant increases the rate or speed of a chemical reaction due to ____ ?
(A). An increase in the volume of the system
(B). An increase in concentration of the reactants
(C). A decrease in the vibrational energy between the reacting particles.
(D). An increase in the vibrational energy between the reacting particles.
Study of chemical kinetics shows that, in order to yield the expected products of a chemical reaction, _____?
(A). The energy of the reactants must exceed the energy barrier of the reaction
(B). The energy of the product must be less than the energy barrier of the reaction
(C). The energy of the reactants must be equal to the energy barrier of the reaction
(D). The energy of the expected products must be equal to the energy barrier of the reaction
The addition of a catalyst in a chemical reaction increases the speed of the reaction by ____?
(A). Increasing the pressure of the system
(B). Decreasing the volume of the system
(C). Decreasing the energy barrier of the reaction
(D). Increasing the temperature of the reaction
A chemical reaction whose speed or rates does not depend on the concentration of the reactants is known as _____ order reaction?
In which of the following states of matter is the rate of a chemical reaction fastest?
Reactants in ionic phase have higher reaction rate than reactants in neutral phase due to the presence of ____?
(A). presence of higher temperature in ionic phase
(B). lightness of ionic substances
(C). presence of mobile electrons in ionic substances
(D). present of mobile electrons in neutral substances
The plot of the concentration per unit time of a chemical reaction gives rise to the ___?
(A). Enthalpy change of the reaction
(B). Activation energy of the reaction
(C). Rate of the reaction
(D). Temperature change of the reaction
you are to post your answers into the COMMENT BOX or DISCUSSION BOX.
Good luck…. +2348060113736.