What determines rate of reaction?

Rate of reaction is determined by the number of successful collisions between the reactants per second. A collision is successful if two particles collide with enough energy to react. This can be affected by temperature or concentration (pressure of a gas).

When a substance is heated, the particles gain kinetic energy. This means they will move faster and so collide with more energy, meaning that the collision is more likely to be successful. Increasing the concentration means there are more particles in an area, so they are more likely to collide as they move and therefore there will be more successful collisions per second.

CS
Answered by Charlie S. Chemistry tutor

2452 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

How would changing reaction vessel volume and reaction vessel temperature affect the rate of a reaction?


What is distillation?


In the labratory you are given 1.5g of butyl butanoate ester C8H16O2. (i) Draw the functional group of this compound. (ii) What is the emperical formula of the compound. (iii) What is the molar mass of the compound? (iv) How many moles were you given


How and why does atomic radius vary in the periodic table?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning