Question
What's the absolute pressure if the gauge pressure of a gas is 114 kPa?
Question 3 options:
A)
214 kPa
B)
14 kPa
C)
220 kPa
D)
50 kPa
Question 3 options:
A)
214 kPa
B)
14 kPa
C)
220 kPa
D)
50 kPa
Answers
GPT-4o mini
To find the absolute pressure, you need to add the gauge pressure to the atmospheric pressure. The standard atmospheric pressure at sea level is approximately 101.3 kPa. Therefore, you can calculate the absolute pressure as follows:
\[
\text{Absolute Pressure} = \text{Gauge Pressure} + \text{Atmospheric Pressure}
\]
Given that the gauge pressure is 114 kPa:
\[
\text{Absolute Pressure} = 114 \, \text{kPa} + 101.3 \, \text{kPa} \approx 215.3 \, \text{kPa}
\]
Rounding this number to the closest option gives an approximate absolute pressure of 214 kPa.
Therefore, the correct answer is:
**A) 214 kPa**
\[
\text{Absolute Pressure} = \text{Gauge Pressure} + \text{Atmospheric Pressure}
\]
Given that the gauge pressure is 114 kPa:
\[
\text{Absolute Pressure} = 114 \, \text{kPa} + 101.3 \, \text{kPa} \approx 215.3 \, \text{kPa}
\]
Rounding this number to the closest option gives an approximate absolute pressure of 214 kPa.
Therefore, the correct answer is:
**A) 214 kPa**