The unit of the rate constant (k) is same as that of rate of reaction________________?

Related Mcqs:

1. Anything which increases rate of reaction without being involved in the reaction________________?

   A. Promoter
   B. Catalyst
   C. Inhibitor
   D. All of the above

2. Which is the unit of (K) rate constant for zero order reaction ?

   A. s-1
   B. mol dm-3 s-1
   C. mol-1 dm3 s-1
   D. mol-2 dm6 s-1

3. For a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other as___________________?

   A. qp = qv
   B. qp < qv
   C. qp > qv
   D. qp = qv / 2

4. For which system does the equilibrium constant Kc has unit of (concentration)-1__________________?

   A. N2+3H2 2NH3
   B. H2+I2 2HI
   C. 2NO2 N2H4
   D. PCI5 PCI3+CI2

5. The specific rate constant of a first order reaction depends on the________________?

   A. Time
   B. Concentration of the reactant
   C. Temperature
   D. Concentration of the product

6. Unit of rate of reaction is_________________?

   A. Moles dm-3 sec-1
   B. Moles dm-3
   C. Moles sec-1
   D. Mol-1 dm3 sec-1

7. Which of the following points are important in connection with equilibrium constant ?

   A. Kc is constant at given temperature
   B. Kc is unaffected by change in concentration of reactants or products
   C. Kc indicates the extent of reaction but not about the rate of reaction.
   D. All of the above

8. For a gas where volume and pressures are 1dm3 and 2 atm respectively what should be its new volume when pressure is increased to 6 atm at constant temperature ?

   A. 1/2dm3
   B. 1/3dm3
   C. 1/4dm3
   D. 2/3dm3

9. For a reaction involving only gases at 25?C the equilibrium constant can be expressed in terms of molarity Ke or partial pressure Kp. Which is true about the numerical value of Kp ?

   A. Kc is generally greaer than Kp
   B. Kc is generally less than Kp
   C. Kc is generally equal to Kp
   D. Kc is equal to Kp if the total moles of reactants and products are equal

10. Pressure remain constant, at which temperature the volume of gas becomes twice of what it is at 0°C?

    A. 546 °C
    B. 546 K
    C. 200°C
    D. 273 K

    Submitted by: Muhammad Ali Kunbhar