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Ratling [72]
3 years ago
14

The gage pressure measured as 2.2 atm, the absolute pressure of gas is 3.2 bar. Please determine the local atmospheric pressure

in kPa.
Engineering
1 answer:
LiRa [457]3 years ago
8 0

Answer:

97.085\ \text{kPa}

Explanation:

P_{g} = Gauge pressure = 2.2 atm = 2.2\times 101325=222915\ \text{Pa}

P_{abs} = Absolute pressure = 3.2\ \text{bar}=3.2\times 10^5\ \text{Pa}

P_{atm} = Local atmospheric pressure

Absolute pressure is given by

P_{abs}=P_{atm}+P_g\\\Rightarrow P_{atm}=P_{abs}-P_g\\\Rightarrow P_{atm}=3.2\times 10^5-222915\\\Rightarrow P_{atm}=97085\ \text{Pa}=97.085\ \text{kPa}

The local atmospheric pressure is 97.085\ \text{kPa}.

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