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- The unit of density for water is typically expressed as kilograms per cubic meter (kg/m³) or grams per cubic centimeter (g/cm³).
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Jul 31, 2024 · The most commonly used units are: [kg/m³] – kilogram per cubic meter; [lb/ft³] – pound per cubic foot; [g/ml] or [g/cm³] – gram per milliliter or gram per cubic centimeter, which are equivalent to each other. The density of water in kg/m³ is 1000 times greater than the density of water in g/cm³ and circa 16.018 times smaller than the ...
- Wojciech Sas
Density is mass divided by volume (ρ=m/v), and water was used as the basis for establishing the metric unit of mass, which means a cubic centimeter (1cm 3) of water weighs one gram (1g). So, 1g/1cm 3 = 1 g/cm 3, giving water its easy-to-remember density.
Jul 12, 2023 · What is the Density of Water and How to Calculate it? The density of water is approximately 1 gram per cubic centimetre (g/cm³) or 1000 kilograms per cubic meter (kg/m³) at standard atmospheric pressure and temperature. To calculate the density of water, you use the formula: Density (ρ) = Mass (m) / Volume (v)
- Density
- Volume and Change in Temperature
- Density and Change in Temperature
- Density and Change in Pressure
- Density of A Fluid Changing Both Temperature and Pressure
- Example - Density of Water at 100 Bar and 20 OC
The density of a liquid can be expressed as ρ = m / V (1) where ρ = density of liquid (kg/m3) m = mass of the liquid (kg) V = volume of the liquid (m3) The inverse of density is specific volume: v = 1 / ρ = V / m (2) where v = specific volume (m3/kg)
When temperature increases - most liquids expands: dV = V1 - V0 = V0β dt = V0 β (t1 - t0) (3) where dV = V1 - V0 = change in volume - difference between final and initial volume (m3) β = volumetric temperature expansion coefficient (m3 /m 3 o C) dt = t1 - t0 = change in temperature - difference between final and initial temperature (oC) (3) can be ...
With (1) and (3b) the final density after a temperature change can be expressed as ρ1 = m / ( V0 (1 + β (t1 - t0))) (4) where ρ1 = final density (kg/m3) - or combined with (2) ρ1 = ρ0 / (1 + β (t1 - t0)) (4b) where ρ0 = initial density (kg/m3)
The influence of pressure on the volume of a liquid can be expressed with the three dimensional Hooke's law E = - dp / (dV / V0) = - (p1 - p0 ) / ((V1 - V0 ) / V0) (5) where E = bulk modulus - liquid elasticity (N/m2) The minus sign corresponds to the fact that an increase in the pressure leads to a decrease in volume. With (5) - the final volume a...
The density of a fluid when changing both temperature and pressure can be expressed combining (4b) and (6b) :
density of water 0 oC : 999.8 (kg/m3)expansion coefficient of water at 10 oC : 0.000088 ( m3 /m3 oC) (average value between 0 and 20 oC)bulk modulus of water: 2.15 109 (N/m2)The commonly used formula to determine the density of an object is ρ = m/V, ρ (rho) represents density, m represents mass, and V represents volume. The units used to indicate density are [kg/m 3] or more commonly used [g/cm 3]. The conversion between the two is 1000 kg/m 3 to 1 g/cm 3.
Oct 3, 2024 · The density of water as a function of temperature can be calculated using the following formula: \ [ D = 1000 \times \left (1 - \frac { (T + 288.94)} {5089.2 \times (T + 68.1296)} \times (T - 3.986)^2\right) \] where: \ (D\) is the density in kg/m³, \ (T\) is the temperature in Kelvin.
