Answer :
Final answer:
The absolute pressure in the oxygen tank is calculated by adding the gauge pressure to the local atmospheric pressure, resulting in 341 kPa.
Explanation:
The student is asking about how to calculate the absolute pressure in an oxygen tank when given the local atmospheric pressure and the gauge pressure. Absolute pressure is the sum of the gauge pressure plus the atmospheric pressure. In this case, the gauge pressure is 250 kPa, and the atmospheric pressure is 91 kPa.
To find the absolute pressure, you simply add these two values together:
250 kPa (gauge pressure) + 91 kPa (atmospheric pressure) = 341 kPa (absolute pressure)
Therefore, the absolute pressure in the tank is 341 kPa, which corresponds to option c of the multiple-choice question provided by the student.
