Answer: A
Step-by-step explanation:
To calculate the pressure of the gas (Pgas) in mmHg, you can use the conversion ratio between inches and millimeters and the given atmospheric pressure:
1 inch = 25.4 mm
Therefore, to convert 6 inches to millimeters:
6 inches * 25.4 mm/inch = 152.4 mm
Now that we have the value in millimeters, we can compare it to the atmospheric pressure and calculate the pressure of the gas:
Pgas = Atmospheric pressure - Converted value
Pgas = 320 mmHg - 152.4 mmHg
Pgas = 167.6 mmHg