A system in a 90°F room is charged to 100 psig with nitrogen to perform a standing pressure test. When the system pressure is checked later, the room temperature is 70°F. What pressure would you expect to see in the system?

What will be an ideal response?


(Note: the units are rounded) 100 + 15 = 115 psia
90 + 460 = 550°Rankine

70 + 460 = 530°Rankine

115 psia x

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