Question

The gas in a sealed container has an absolute pressure of 9.25 atmospheres. If the air around the container is at standard pressure, what is the gauge pressure inside the container? A. 0.759 atm B. 8.25 atm C. 10.25 atm D. 113 atm

Answer 1

P = absolute pressure of gas in sealed container = 9.25 atm

P₀ = standard pressure outside the container = 1 atm

we know that the gauge pressure is the difference in absolute pressure and standard pressure. hence

gauge pressure = absolute pressure - standard pressure

ΔP = P - P₀

ΔP = 9.25 - 1

ΔP = 8.25 atm