QQuestionPhysics
QuestionPhysics
125 psig is equivalent to
A. 14.696 psia.
B. 135 psia.
C. 139.7 psia.
D. 147.7 psia.
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Answer
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Step 1:I'll solve this problem step by step using the specified LaTeX formatting guidelines:
Step 2:: Understand the Given Information
- We are given a pressure of 125 psig (pounds per square inch gauge) - We need to convert this to absolute pressure (psia)
Step 3:: Recall the Conversion Formula
P_{absolute} = P_{gauge} + P_{atmospheric}
The conversion from gauge pressure (psig) to absolute pressure (psia) is:
Step 4:: Identify Atmospheric Pressure
P_{atmospheric} = 14.696 \text{ psia}
Standard atmospheric pressure is typically:
Step 5:: Calculate Absolute Pressure
P_{absolute} = 125 \text{ psig} + 14.696 \text{ psia}
P_{absolute} = 139.7 \text{ psia}
Step 6:: Compare with Given Options
Checking the options, we see that 139.7 psia matches option C.
Final Answer
Key Insights: - Gauge pressure measures pressure relative to atmospheric pressure - Absolute pressure includes the standard atmospheric pressure - Always add atmospheric pressure (14.696 psia) to gauge pressure to get absolute pressure
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