• YOU can help the next generation of students in the community!
    Share your trial papers and notes on our Notes & Resources page

rate of reaction - temperature factor (1 Viewer)

dgt20

New Member
Joined
Sep 14, 2017
Messages
28
Gender
Undisclosed
HSC
2018
How would frying/boiling one egg at high temperature and another egg at low temperature be related to its rate of reaction. Obviously the higher heated egg will cook faster while the lower heat one will be much slower but what is the reasoning/explanation behind this?
 

jazz519

Moderator
Moderator
Joined
Feb 25, 2015
Messages
1,955
Location
Sydney
Gender
Male
HSC
2016
Uni Grad
2021
When you cook something chemical reactions are occurring. So essentially there is something called the activation energy for a reaction which is a certain energy amount that the particles must collide with (while having the correct collisional orientation), and if that is not reached then a reaction between molecules won't occur.

However, if we heat it like we do during cooking, we are providing a source of kinetic energy through the conversion of heat to kinetic energy for the molecules and this means that more of them will be able to overcome that activation energy barrier due to a greater average kinetic energy

So the difference between lower and higher heat is, it takes longer for the heat to be converted into kinetic energy for lower heat
 
Last edited:

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top