A piston above a liquid in a closed container has an area of 1m2. The piston carries a load of 350 kg. What will be the external pressure on the upper surface of the liquid?

Question

Yair Dillon

Physics

19 February, 08:12

A piston above a liquid in a closed container has an area of 1m2. The piston carries a load of 350 kg. What will be the external pressure on the upper surface of the liquid?

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Jaylin Blackwell · Answer 1

Pressure is defined as the force exerted per unit of area. From the information given, the force exerted can be attributed to the mass of the load carried by the piston. This means that its weight is equivalent to the force it exerts.

Weight = mass (9.81) = 3433.5 Newtons

Area of piston = 1 m^2

Pressure = Force/Area = 3433.5/1 = 3433.5 N/m^2 or Pascals.