Chemistry
Explain the difference between instantaneous rate of a reaction and average rate of a reaction .
03
Jun
Explain the difference between instantaneous rate of a reaction and average rate of a reaction . Explain the difference between instantaneous rate of a reaction and average rate of a reaction . June 3, 2021 Category: Chemistry , NCERT Exemplar Class 11 ,
Describe why the enthalpy of a reaction remains unchanged when a catalyst is used in a reaction.
03
Jun
Describe why the enthalpy of a reaction remains unchanged when a catalyst is used in a reaction. Describe why the enthalpy of a reaction remains unchanged when a catalyst is used in a reaction. June 3, 2021 Category: Chemistry , NCERT Exemplar Class 11 ,
What happens to most probable kinetic energy and the energy of activation with increases in temperature?
03
Jun
What happens to most probable kinetic energy and the energy of activation with increases in temperature? What happens to most probable kinetic energy and the energy of activation with increases in temperature? June 3, 2021 Category: Chemistry , NCERT Exemplar Class 11 ,
The role of a catalyst is to change
03
Jun
The role of a catalyst is to change The role of a catalyst is to change June 3, 2021 Category: Chemistry , NCERT Exemplar Class 11 ,
All energetically effective collisions do not result in a chemical change. Explain with the help of an example.
03
Jun
All energetically effective collisions do not result in a chemical change. Explain with the help of an example. All energetically effective collisions do not result in a chemical change. Explain with the help of an example. June 3, 2021 Category: Chemistry , NCERT Exemplar Class 11 ,
Assertion (A) Rate constant determined form Arrhenius equations are fairly accurate for simple as well as complex molecules. Reason (R) Reactant molecules undergo chemical irrespective of their orientation during collision.
03
Jun
Assertion (A) Rate constant determined form Arrhenius equations are fairly accurate for simple as well as complex molecules. Reason (R) Reactant molecules undergo chemical irrespective of their orientation during collision. Assertion (A): Order of the reaction can be zero or fractional · Reason (R): We cannot determine order from balanced chemical equation · June 3, [...]
Assertion (A) : The enthalpy of reaction remains constant in the presence of a catalyst. Reason (R) : A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in energy of reactant and product remains the same.
03
Jun
Assertion (A) : The enthalpy of reaction remains constant in the presence of a catalyst. Reason (R) : A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in energy of reactant and product remains the same. Assertion (A): Order of the reaction can be zero [...]
Assertion: All collisions of reactant molecules lead to product formation. Reason: Only those collisions in which molecules have correct orientation and sufficient kinetic energy lead to compound formations.
03
Jun
Assertion: All collisions of reactant molecules lead to product formation. Reason: Only those collisions in which molecules have correct orientation and sufficient kinetic energy lead to compound formations. Assertion (A): Order of the reaction can be zero or fractional · Reason (R): We cannot determine order from balanced chemical equation · June 3, 2021 Category: [...]
Assertion: Order and molecularity are same. Reason: Order is determined experimentally and molecularity is the sun of the stoichiometric coefficient of rate determining elementary step.
03
Jun
Assertion: Order and molecularity are same. Reason: Order is determined experimentally and molecularity is the sun of the stoichiometric coefficient of rate determining elementary step. Assertion: Order and molecularity are same. Reason: Order is determined experimentally and molecularity is the sun of the stoichiometric coefficient of rate determining elementary step. June 3, 2021 Category: Chemistry [...]
Assertion (A): Order of the reaction can be zero or fractional · Reason (R): We cannot determine order from balanced chemical equation ·
03
Jun
Assertion (A): Order of the reaction can be zero or fractional · Reason (R): We cannot determine order from balanced chemical equation · Assertion (A): Order of the reaction can be zero or fractional · Reason (R): We cannot determine order from balanced chemical equation · June 3, 2021 Category: Chemistry , NCERT Exemplar Class [...]