High School

What is the absolute pressure in pounds per square inch (psi) inside the tank if the gauge reads 34.5 kPa? Assume atmospheric pressure is equal to 14.7 psi.

Answer :

The absolute pressure inside the tank is 19.7 psi.

The absolute pressure inside the tank can be calculated by adding the gauge pressure and the atmospheric pressure. In this case, the gauge reads 34.5 kPa and the atmospheric pressure is 14.7 psi. To convert the gauge pressure to psi, divide by 6.895, so the gauge pressure is approximately 5.00 psi. Therefore, the absolute pressure inside the tank is 5.00 psi + 14.7 psi = 19.7 psi.

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