Homework Help: Chemistry

Posted by Lisa on Sunday, January 28, 2007 at 5:48pm.

Hi. I need some help with this.

When you stretch a balloon against your lips, is heat given off or absorbed? Which driving force is dominating this change, the tendency toward lower energy or the tendency toward disorder?

Heat is given off obviously but I don't know what to say for the second question. PLS help!

Is heat given off or absorbed by what; i.e, the lips or the balloon. Obviously one must be exothermic and one must be endothermic. Why not try it with a balloon and see?

Heat is given off by the balloon and absorbed by the lips but what I don't understand is what is the driving force. I suppose it must the tendency of the balloon toward disorder but I'm not sure.

That may be part of it. Also, you have done work on the balloon by distorting (stretching) it.

No one has answered this question yet.

Answer this Question

Related Questions

Science - Chemistry Enthalpy Calculations? Given the equation: CaO + H2O ----&...
Biology - Hi guys, need help with homework...got some done, but not sure about ...
Chemistry - How much heat is either ______(absorbed or given off) when 91.45g of...
AP Chemistry - The buoyant force on a balloon is equal to the mass of air it ...
Physics-Help-I'm Stuck - If a balloon is made of Mylar(alumized plastic) ...
Chemistry - The buoyant force on a balloon is equal to the mass of air it ...
AP Chemistry - The buoyant force on a balloon is equal to the mass of air it ...
Chemistry - One mole methane is completly burned in xcess oxygen. If 8.90x10^3kj...
physics - A transfer of heat occurs with a pot of 8.0 kg of water that changes ...
chemistry - calculate the internal energy change for each of the following. a. ...

For Further Reading

First Name:
School Subject:
Answer: