I have a square room that is empty it measures 10 x 10. The height of the room is 10ft. I have an A/C unit that will cool 50 cubic feet in 8 minutes. How long will it take to cool all the air in the room. I am asking this because I suck at mathematics.
2007-08-23 17:12:50 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
10x10x10= 1000 cubic ft!
If 50cf are cooled in 8 minutes then it will take 20 times that to cool 1000cf.
1000/50=20
20 x 8 minutes = 160 minutes
160 minutes = 2 hours and 40 minutes!
2007-08-23 17:24:22 · answer #1 · answered by fire4511 7 · 2⤊ 1⤋
10 x 10 x 10 = 1,000 ft³.
1,000ft³ ÷ 50ft³ = 20.
20 x 8min = 160 min
Time taken to cool 1,000ft³ = 2 hours 40 min.
(The reason for you asking this question is, I believe you know that....If the internal air is being re-circulated and no fresh air is taken in, then the cooling rate will be increased exponentially as the air entering the evaporator becomes cooler every minute and therefore the total cooling process will be very much reduced as the fridge unit efficiency increases).
2007-08-23 17:41:07 · answer #2 · answered by Norrie 7 · 1⤊ 0⤋
Ten by ten by ten is a thousand cubic feet. Twenty fifty-cubic-foot blocks would fit inside this. It takes eight minutes to cool each one of these, one after another, and eight times twenty is a hundred and sixty, which is two hours and forty minutes.
2007-08-23 17:24:47 · answer #3 · answered by 2n2222 6 · 1⤊ 0⤋
10x10x10 is 1000 sqft.
1000/50 = 20
20 * 8 = 160
It takes 160 minutes or 2 hours and 40 minutes.
2007-08-23 17:23:06 · answer #4 · answered by tkquestion 7 · 1⤊ 1⤋
10 minutes
2007-08-24 08:36:37 · answer #5 · answered by ChuckDeucez 6 · 0⤊ 2⤋
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2016-11-13 07:32:45 · answer #6 · answered by ? 4 · 0⤊ 0⤋
16 minutes, but you really want to know air exchange.
2007-08-23 17:21:16 · answer #7 · answered by Anonymous · 0⤊ 3⤋