The local atmospheric pressure is measured with a water barometer. If the water column is measured to be 30 ft, what is the atmo
1 answer:
Answer:
The atmospheric pressure in atm=0.885 atm
Explanation:
Given that
Local pressure (h)= 30 ft of water height ( 1 ft= 0.3048 m)
We know that pressure in given by
P=ρgh
We know that ρ of water is 1000
So pressure
P=1000(9.81)(9.144)
We know that 1000 Pa=0.00986 atm
So P=0.885 atm
The atmospheric pressure in atm=0.885 atm
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Answer:
The tube surface temperature immediately after installation is 120.4°C and after prolonged service is 110.8°C
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pV = 0.596 kg/m³
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qn = 0.9 * 18703.42 = 16833.078 W/m²
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Tinst = 100 + 20.4 = 120.4°C
For rough surfaces, Cfg = 0.0068. Using the same equation:
ΔT = 10.8°C
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Tprolo = 100 + 10.8 = 110.8°C