Physics Quiz Question

Think of it this way. If the entire atmosphere's temperature was
increased by say 10 degrees, the average pressure at the surface would
be as it had been, each square inch supporting about 15 pounds of air.
The 15 pounds doesn't change bcause it's hotter.



On Aug 6, 10:05 am, Dallas wrote:
Brought over from RAS:

Assuming that all other variables remain constant:

An increase in temperature will result in a higher atmospheric pressure - a
higher temperature speeds up the movement of the air molecules, thereby
raising the pressure they exert on the surrounding atmosphere.

A) True
B) False

--
Dallas

I seem to have come late to this scrum...

Anyway, the last poster missed a thing or three... Like Euler, like
Boyles law, like the equation for lift, like Bernouille, etc..

The biggest thing he missed is if you heat a gas and keep its pressure
the same then it has to expand (That old Boyle guy again)
Expanded gas means the molecules are farther apart... Molecules being
farther apart means less density, less density means less lift...

Ya know in the ancient times of BI (before internet) you had to truck
down to the library and dig through piles of books to find this
information... Today, in 0.002 seconds your web browser will pull up
the articles and equations on this subject... It is highly recommended
by me...

denny