Assignment =>1 on "Chemical Kinetics" chapter : 4

Solve Online  Assignment =>1 on "Chemical Kinetics" chapter : 4 for practice of CBSE BOARD, CBSE NEET, CSIR NET Chemical Science etc.

TOPIC: Rate of reaction – Average and instantaneous rates

Q.1. Define the term chemical kinetics? 

Q.2. Define – Rate of reaction? 

Q.3. What is average rate of a reaction? How is it determined? 

Q.4. What are the units of rate of a reaction?

Q.5. What is instantaneous rate of a reaction? How is it determined?

Q.6. For the following reactions, write the rate of reaction expression in terms

of reactants and products? 

i) 4NH₃ (g) + 5O₂ (g)   ==>  4NO (g) +  6H₂O (g)

ii) 2N₂O₅ ==> 2NO₂ + O₂

Q.7. For the chemical decomposition of SO₂Cl₂, its initial concentration is

0.8420 mol/L and final concentration is 0.215 molL-1 in 2 hours. What is the average rate of this reaction? 

Q.8. In the expression of rate of reaction in terms of reactants, what is the

significance of negative sign? 

Q.9. For the reaction 2O₃ (g) ⇌ 3O₂ (g),   ( -Δ[ O₃] / Δt ) was found to be 5.0 X 10^-4 at m/s. Determine the value of  ( Δ[ O₂] / Δt )in atm /s during this period of time?

Q.10. A chemical reaction 2A ⇌ 4B + C in gas phase occurs in a closed vessel.

          The concentration of B is found to be increased by 5 x 10^-3 mole L^-1 in        10 second. Calculate (i) the rate of appearance of B (ii) the rate of                   disappearance of A?

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