thermodynamics

[yingao88]

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many automobile ac system have the option of using outside vent air in the air cooling system or air recycle from inside the car. which of the following would best provide the rapid and steady cooling of the air in a closed in a hot day?

a. use hotter recycled air until the inside of air is cool, then switch to the outside air
b. use the cooler outside air is cool then switch to recycled the air.
c. use the recycled air exclusively.
d. use the outside air exclusively.

 

[Leonardo Noto]

many automobile ac system have the option of using outside vent air in the air cooling system or air recycle from inside the car. which of the following would best provide the rapid and steady cooling of the air in a closed in a hot day?

a. use hotter recycled air until the inside of air is cool, then switch to the outside air
b. use the cooler outside air is cool then switch to recycled the air.
c. use the recycled air exclusively.
d. use the outside air exclusively.

Take this for what you will, because I'm probably the worst person on this forum for physics. But I read your question and I have to give it a stab since you didn't post the answer (post it, please!) and I have so free time on my hands. I'm going with choice B based solely on common sense. So end the suspense, what's the correct answer, man ;-)

Dr. Leonardo Noto
www.leonardonoto.com