IN COLSED SYSTEM the diameter of the pipe reduces from 80cm to 40cm. whether pressure will decrease or increas

Question

the dia reduces from 80cm to 40cm?

Answer 1

V=3.14Pr^4/8nl
V-volume flowing per sec
P-pressure
n-coefficient of viscosity of the liquid
l-length of the pipe
therefore as radius becomes half pressur increases to 16 times
considering V as constant
this is poiseulli's formula

Answer 2

Assuming that all other parameters remain unchanges, if the diameter of the pipe reduces from 80cm to 40cm the pressure increases by 2 times.

its simple.

Answer 3

of route there's a huge distinction contained in the dimensions . . . extra heavily, between the intial fashions used to describe atomic structure (the Bohr type) defined the atom as being like our image voltaic gadget with electrons have discrete orbits around the nucleus very resembling planets around the sunlight. in spite of the indisputable fact that, it truly is an early type. the precedence with employing the picture voltaic gadget as a type for the atom is that electrons are not to any extent further only debris. also they are waves. This wave-particle duality makes it complicated to describe precisely how they behave. All count number will be defined as both waves and debris; in spite of the indisputable fact that, on condition that the mass of the count number is somewhat small does the wave nature change into significant. Planets are large and could be defined very appropriately as debris. The follow discrete orbits around the sunlight with conventional sessions of revolution and rotation. some planets have moons. Electrons are sufficiently small that they could be defined as waves. 2 Nobel prizes were presented in Chemistry for showing the electron to be particle like and for showing the electron to be wavelike. the area of an electron around the nucleus is nice defined (in accordance to our modern understanding) as being in orbitals, that are the sq. of the wavefunction - indicating the position the electron is possibly positioned. There are sorts of orbital with diverse symmetry. those orbitals exist in shells reckoning on how far far off from the nucleus they are. the first shell is has a s orbital (round). The electrons in that shell are defined through quantum numbers n=a million (first shell), m=0 (s orbital), m8a68dc3e925eacf92633be23722a140l79b311621c5110d060c1de27283791258a68dc3e925eacf92633be23722a140=0 (magnetic quantum variety, will change into extra important at more beneficial values of m), and m8a68dc3e925eacf92633be23722a140s8a68dc3e925eacf92633be23722a140=a million/2 or -a million/2 (spin up or spin down). those quantum numbers describe the electrons somewhat than the distances and places used to describe planets.

Answer 4

As the pressure is dependant on the cross sectional area of passage of the medium and the velocity of flow, the reduction in the diameter of the pipe will increase the pressure, if the velocity of flow remain unchanged.

Answer 5

If the fluid in the closed system is flowing then pressure is bound to drop as there will be a loss of head when there is change of cross sectional area wheather it is increased or decereased.

Answer 6

Irrespective of closed/open system, when fluid flows through a pipe of decreasing cross section, its velocity increases and pressure decreases unless external force acts.

Answer 7

The laws for pressure in a pipe is as follows ; increase velocity decrease pressure, decrease velocity increase pressure.

Answer 8

It depends on the velocity of fluid in the pipe, if velocity increases pressure decreases nd vice versa.

Answer 9

its very nice question but the pressure will increase in side the system ,, lets say we have a closed cylinder and we reduce the volume of this cylinder by 50% so the pressure will increase for sure

Answer 10

you asked for a closed system.
in closed system pressure will not change.

If any fluid is flowing in the pipe and you reduce the diameter of the pipe , pressure will decrease and velocity of the fluid will increase.