Skip to main content

Shalaa

Search This Blog

When gold crystallizes, it forms face-centred cubic cells. The unit cell edge length is 408 pm. Calculate the density of gold. Molar mass of gold is 197 g/mol.

on March 06, 2023

Get link
Facebook
X
Pinterest
Email
Other Apps

Get link
Facebook
X
Pinterest
Email
Other Apps

Comments

Post a Comment

Popular Posts

Equation of continuity

Volume flow rate: The volume of fluid passing by a given point per unit time throughan area is called the volume flow rate, or simply flow rate. Q Q= dv/dt Consider an ideal fluid flowing with velocity through a uniform flow tube of cross section A. If, as shown in Fig. 2.34, the shaded cylinder of fluid of length x and volume V flows past point P in time t The 51 unit for volume flow rate is the cubic metre per second (m/s) Another common unit accepted in SI is the litre per minute (L/min).An old non-Sl unit from FPS system still used is the cubic feetper second (symbol, cusec). Mass flow rate : The mass of fluid passing by a given point per unit time through an area is called the mass flow rate dm/dt. Consider an ideal fluid of density p flowing with velocity o through a uniform flow tube of cross section A. If, as shown in Fig. 2.34, the shaded cylinder of fluid of length x and volume V flows past point P in time t Continuity condition for a flow ...

Polyester / terylene

Polyester / terylene : The polyester polymers have ester linkage joining the repeating units. Commercially the most important polyester fibre is 'terylene' (also called dacron). It is obtained by condensation polymerization of ethylene glycol and terephthalic acid in presence of catalyst at high temperature.

Bernoulli's equation of fluid flow:

Bernoulli's equation of fluid flow: Consider an ideal fluid incompressible and nonviscous of density p flowing along a flow tube of varying cross section. The system under consideration is the flow tube between points 1 and 2, and the Earth (Fig. 2.37) From the continuity equation it follows that pressure and speed must be different in regions of different cross section. If the height also changes, there is an additional pressure difference. The fluid enters the system at point 1 through a surface of cross section A, at speed . The point 1lies at a height hy, with respect to anarbitrary reference level y = 0, and the local pressure there is p₁. Thefluid leaves the system at point 2where the corresponding quantitiesare A2 , h2 and p2. Consider a small fluid element, of volume ΔV and mass Δm = p ΔV, that enters at point 1 and leaves at point 2 during small time interval Δt. In the absence of internal fluid friction, it can be shown that the wor done on the fluid element ...

Powered by Blogger