Is there any way to predict if a substance is flammable or not?

  • Context: Undergrad 
  • Thread starter Thread starter tsuwal
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on predicting the flammability of substances, highlighting that certain classes of compounds, such as alkanes, are inherently flammable. Key factors in assessing flammability include the chemical equation of combustion and the change in enthalpy. The concepts of 'flash point' and 'autoignition temperature' are critical in determining a material's flammability, as demonstrated by the difficulty of igniting newspaper in low oxygen conditions. Understanding these properties allows for a more accurate prediction of flammability.

PREREQUISITES
  • Understanding of chemical equations and combustion processes
  • Knowledge of enthalpy changes in chemical reactions
  • Familiarity with the concepts of flash point and autoignition temperature
  • Basic principles of physical chemistry
NEXT STEPS
  • Research the specific flash points of various materials
  • Study the concept of autoignition temperature in detail
  • Explore the chemical properties of alkanes and their flammability
  • Learn about combustion reactions and their enthalpy changes
USEFUL FOR

Chemists, safety engineers, and anyone involved in material safety assessments or fire prevention strategies will benefit from this discussion.

tsuwal
Messages
105
Reaction score
0
You know that some classes of compounds are flammable like alkanes but is there any other based to know based on other physical and chemistry properties? Probabibly the only way is writing the chemical equation of combustion and see if the change of entalpy is high..
 
Physics news on Phys.org
Looks like you answered your own question.:)
 
Flamable is quite a subjective word. I recently saw an interesting demonstration on TV of some people trying to burn newspaper in a low oxygen room. The level was high enough that the people were fine and didn't need oxygen masks - but low enough that they had great difficulty trying to set fire to the paper. The paper didn't appear to be flamable.
 
thanks! you guys are awesome!
 

Similar threads

  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 46 ·
2
Replies
46
Views
6K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 28 ·
Replies
28
Views
5K
  • · Replies 1 ·
Replies
1
Views
4K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 24 ·
Replies
24
Views
3K
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K