Download App

Chemical Kinetics — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryChemical Kinetics3 Marks
Question
Write the differences between the rate and rate constant of the reaction.
✓

Answer

Rate of a reaction:
  1. It represents the speed at which the reactants are converted into products at any instant
  2. It is measured as decrease in the concentration of the reactants (or) increase in the concentration of products
  3. It depends on the initial concentration of reactants

Rate constant of a reaction:
  1. It is a proportionality constant
  2. It is equal to the rate of the reaction, when the concentration of each of the reactants is unity
  3. It does not depend on the initial concentration of the reactants

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[ 3 Marks Questions ]" from Chemical Kinetics→Chemical Kinetics — all question types→Chemistry STD 12 question papers→Tamilnadu Board STD 12 question papers→Tamilnadu Board question paper generator→

Similar questions

(i) Describe the preparation of acetic acid from acetylene.
(ii) How can the following be obtained from acetic acid:
(a) Acetone
(b) Acetaldehyde
(iii) In what way can acetic acid be distinguished from acetone?
(iv) Why carboxylic acid do not give the characteristic reactions of a carbonyl group?
→
Why is anode in galvanic cell considered to be negative and cathode positive electrode?
→
How acetone reacts with the following reagents?
(i) $NH _2 OH$
(ii) $NH _2- NH _2$
(iii) $C _6 H _5 NH - NH _2$
→
Describe the composition of anode and cathode in a mercury cell. Write the electrode reactions for this cell.
→
Differentiate lyophillic and lyophobic colloids
→
Heat of adsorption is greater for chemisorption than physisorption. Why?
→
Explain why o – hydroxybenzaldehyde is a liquid at room temperature while p – hydroxybenzaldehyde is a high melting solid?
→
What are the values of A and B in Debye Huckel and Onsagar equation?
→
Lactose act as reducing sugar. Justify this statement.
→
Explain the methods of preparation of colloids of
  1. $AS_2 S_3$
  2. S.
→