Re: Stop using calories?

[SCIAMANDA@edinboro.edu]

Steve wrote:
 . . .
> (b)  Our classroom holds about 6800 moles of air (molecular mass = 
> 29.0 gm/mole).  Suppose the temperature in the room is initially 20 C
> and all the candy bar's energy is somehow delivered to the air
> molecules.  What will the final temperature be, and what will the rms 
> speed of the molecules be?

> Steve Luzader

-- 
If you get more "realistic", the problem is even more fascinating.
Under ideal gas, constant volume and constant pressure conditions, 
ALL of the energy added to the air goes outside!
I leave this as a teaser for those who have not seen it before. 

Bob Sciamanda           sciamanda@edinboro.edu
Dept of Physics         sciamanda@worldnet.att.net
Edinboro Univ of PA     http://www.edinboro.edu/~sciamanda/home.html