Can you describe four variables which affect the rate of a chemical reaction and how they affect the rate?

  1. Temperature: A higher temperature increases the rate of a reaction by increasing the number of particles with enough energy to take part in a reaction.
    2) Particle size: The smaller the particle size the greater the rate of reaction. Smaller particle size means a larger surface area of the solid and therefore the greater the number of collisions between molecules which might react.
    3) Pressure: Similar to the above. Greater pressure means more particles in a volume and therefore the higher chance of a successful reaction between molecules.
    4) Concentration: Similar to the above. Higher concentrations results in greater rate of reaction.
Answered by Steven S. Chemistry tutor

1594 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

Describe, in three steps, how you would synthesise phenylethylamine (C6H5CH2CH2NH2) from methylbenzene, giving reagents and conditions for each step. For each step, state the type of reaction that occurs.


What is electronegativity?


Calculate the concentration, in mol dm-3, of a solution of chloric (I) acid, HOCl , which has a pH of 4.23. Chloric acid is a weak acid, with Ka = 3.72 x 10^-8


Giving the electronic configurations for each element, predict the trend in 1st ionisation energies going across period 2 from Lithium to Neon.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences