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KTW · Answer 1 · 2019-08-27T22:29:54+0000

The minimum volume of hot air would be 3,200 m^3.

If we see the lift of one cubic meter of hot air as being 0.25 kg, we can simply calculate this by doing: 800/0.25 = 3200.

You can check the answer by doing 3200*0.25=800

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