### Calculate the density and specific weight of air at a gage

Calculate the density and specific weight of air at a gage pressure of 100 psi and a temperature of 100{eq}^\circ {/eq}F. Assuming standard atmosphere. Properties of Fluid:Mass Density: Chapter 2Fluid properties (contd..) Specific Gravity The ratio of the density of the fluid to the density of water at 40 c and standard atmospheric pressure. S g = / w where = density of fluid (slug/ft3) w= density of water (slug/ft3) Fluid properties (contd..) Specific weight Weight per unit volume = mg / V

### Civil Engineering - Different Properties of Fluids

The value of density of water is 1 gm/cm 3 or 1000 kg/m 3. 2. Specific Weight or Weight Density :Specific weight or weight density of a fluid is the ratio between the weight of a fluid to its volume.Thus weight per unit volume of a fluid is called weight density and it is denoted by the symbol w. Fluid Properties-Density and Pressure - Fluid Mechanics So these definitions rho the density of the fluid has dimensions of mass per unit volume. For example, kilograms per cubic meter. Gamma, the specific weight is a weight per unit volume. Weight is a force so it has predominant fundamental dimensions of force per unit volume. For example, newtons per cubic meter, or pound force per cubic foot. Properties of Fluid - FirstalertJun 17, 2020 · Specific gravity is also called as relative density. It is denoted by the symbol s and it is a dimensionless quantity. Mathematically. Specific gravity (S) = (weight density of a fluid/ weight density of water) Hence weight density of a liquid = (Specific gravity (S)) x (weight density of water) = S x 1000 x 9.81 N/m 3

### Water - Density, Specific Weight and Thermal Expansion

The density of water is 1.940 sl/ft 3 at 39 °F (4 °C), and the specific weight in Imperial units is. = 1.940 [sl/ft3] * 32.174 [ft/s2] = 1.940 [lb f ]/ ( [ft/s2]* [ft3]) * 32.174 [ft/s2] = 62.4 [lb f /ft3] See more about the difference between mass and weight. fin32020 ch02.qxd 8/10/01 5:38 PM Page 13 CHAPTER 2 The densityr(rho),1or more strictly, mass density,of a uid is its massper unitvolume, while the specic weightg(gamma) is its weight per unit volume. In theBritish Gravitational (BG) system (Sec. 1.5) density rwill be in slugs per cubicfoot (kg/m3in SI units), which can also be eed as units of lbsec2/ft4Density, Specific Weight and Specific GravityThe specific weight in SI units is. = 1000 [kg/m 3] * 9.81 [m/s 2] = 9810 [N/m 3] = 9.81 [kN/m3] The density of water is 1.940 slugs/ft3 at 39 °F (4 °C). The specific weight in Imperial units is. = 1.940 [slugs/ft 3] * 32.174 [ft/s 2] = 62.4 [lb/ft3] Back to top.