If 18.75 mol of helium gas is at 10.0°C and a gauge

Solution 34PIntroductionIn this question, we shall have to consider Bernoulli’s principle. It states that mechanicalenergy of a fluid motion remains constant. This mechanical energy comprises of the fluid'spressure energy, kinetic energy and gravitational potential energy. It can be states as shownbelow.P + dv + hdg = constant…..(1), where P is the pressure at a point, d is the density of the 2fluid, h is the height of the point from the fluid’s surface.We shall also have to consider the continuity equation Av = constant, where A is the area ofcross-section and v is the fluid speed.Step 1Let P A is the pressure at the point A and v Ais the water speed at this point. Similarly, letP be the pressure at B and v be the liquid speed at B. B BSince all pipes are circular and in equal elevation, hence we can omit the gravitationalpotential energy term from the Bernoulli’s equation.For points A and B, it can be written as 1 2 1 2P A + 2v A = P B + 2v B 1 2 1 2P B = P A + 2v A 2v B d 2 2P B = P A + 2v A v B )…..(2)\n