Jump to content

Ectothermic and Endothermic reactions


Caleb

Recommended Posts

Yes and no....

 

On the whole, most reactions are exothermic.

 

But in an endothermic reaction, the bonds in the product are weaker than they are in the reactants. To overcome this, there has to be an increase in entropy. So if a reaction produces a lot of gas molecules then its possible it'l be endothermic.

Link to comment
Share on other sites

So if a reaction produces a lot of gas molecules then its possible it'l be endothermic.

 

What about gasoline and oxygen? With plenty of oxygen, this reaction makes nothing but CO2 and H2O. Still it is a very ectothermic reaction.

Link to comment
Share on other sites

Well CO2 is a gas so it will be favoured anyway....but you have to consider the bond strengths....C=O in the carbon dioxide are very very strong. Like I said....enthalpy is not a good indication of whether a reaction will work or not

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.