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What is collision frequency?...

What is collision frequency?

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Average number of collisions per unit time.
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What is a collision?

Increase in rate of reaction with rise in temperature is mainly due to increase in collision frequency/effective collisions.

Estimate the mean free path and collision frequency of a nitrogen molecule in a cylinder containing nitrogen at 2.0 atm and temperature 17 ^@C . Take the radius of a nitrogen molecule to be roughly 1.0overset@ A . Compare the collision time with the time the molecule moves freely between two successive collisions (Molecular mass of N_2 = 28.0 u).

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OMEGA PUBLICATION-CHEMICAL KINETICS -MULTIPLE CHOICE QUESTIONS (MCQ s)
  1. What is collision frequency?

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  2. Consider the chemical reaction, N (2) (g) + 3 H (2)(g) to 2 NH (3) (...

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  3. For a reaction involving solid, decreasing which given below will incr...

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  4. Rate of first order reaction depends upon

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  5. Under a given set of experimental conditions, with increase of concent...

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  6. Rate at which a substance reacts depends upon its

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  7. RCOO R ' + Na OH to RCOO Na + R ' OH. What type of reaction is this ?

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  8. Units of rate constant for the first and zero order reactions in terms...

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  9. Units of specific reaction rate for 2nd order reaction is

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  10. The units of rate constant for first order equation.

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  11. The hydrolysis of ester in alkaline medium is a

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  12. Given the unit of second order rate constant

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  13. The half life period of a zero order reaction is independent of initia...

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  14. What is the effect of temperature on rate of a reaction.

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  15. The activation energy of reaction is equal to

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  16. The activation energy of a reaction can be determined by

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  17. The wavelength of first spectral line in the balmer series is 6561 ang...

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  18. The substance that increases the speed of a chemical reactions is call...

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  19. The reaction rate is found to depend upon two concentration terms. The...

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  20. For which of the following , the units of r constant and rate of the r...

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  21. A zero order reaction is one whose rate independent of

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