91Ó°ÊÓ

The force applied perpendicular to an object's surface per unit area across which that force is spread is known as pressure.

In the given scenario, we have an open- end manometer

P_x = pressure of gas + h

P_y = P₀

P_gas + h = P₀

P_gas = P₀ - h

P₀= Atmosphereic pressure

P_gas = gas pressure

Converting cm of Hg pressure into mm of Hg

1cm of Hg = 10 mm of Hg

13.7 mm of Hg = (13.7) × (10) mm of Hg

= 137 mm of Hg

P₀ = 760 mm of Hg

h = 137 mm of Hg

P_gas = (P₀ - h)

= (760 - 137) mm of Hg

= 623 mm of Hg

Therefore, Pressure is 623 mm of Hg

Converting mm of Hg pressure into atm

1mm of Hg = 0.001315 atm

623 mm of Hg = (623) × (0.001315) atm

= 0.82 atm

Therefore, the Pressure is 0.82 atm

Converting mm of Hg pressure into kPa

1mm of Hg = 0.001333kPa

623 mm of Hg = (623) ×(0.001333) kPa

= 83.05 kPa

Therefore, the Pressure is 83.05 kPa