Question

The gas in a sealed container has an absolute pressure of 125.4 kilopascals. If the air around the container is at a pressure of 99.8 kilopascals, what is the gauge pressure inside the container? A. 1.5 kPa B. 24.1 kPa C. 25.6 kPa D. 112.6 kPa E. 225.2 kPa

Answer 1

The gauge pressure is found by subtracting the atmospheric pressure from the absolute pressure, which in this case is 25.6 kPa, making the answer C. 25.6 kPa.

Step-by-step explanation:

The gauge pressure inside a container is the difference between the absolute pressure inside the container and the atmospheric pressure outside. In this case, to find the gauge pressure, subtract the atmospheric pressure from the absolute pressure of the gas:

Pgauge = Pabs - Patm

Where:

Pgauge is the gauge pressure

Pabs is the absolute pressure inside the container (125.4 kPa)

Patm is the atmospheric pressure outside (99.8 kPa)

So:

Pgauge = 125.4 kPa - 99.8 kPa = 25.6 kPa

Therefore, the correct answer is C. 25.6 kPa.

Answer 2

The gauge pressure inside the container is calculated by subtracting the atmospheric pressure from the absolute pressure inside the container, leading to an answer of C. 25.6 kPa.

Step-by-step explanation:

The gauge pressure inside the container is the difference between the absolute pressure inside the container and the atmospheric pressure outside it.

Using the formula Pgauge = Pabs - Patm, where Pgauge is gauge pressure, Pabs is absolute pressure (125.4 kPa), and Patm is atmospheric pressure (99.8 kPa), we subtract the atmospheric pressure from the absolute pressure to get the gauge pressure:

125.4 kPa - 99.8 kPa = 25.6 kPa.

So, the correct answer is C. 25.6 kPa.