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The Number of Entities formula is the amount of substance of a system that contains as many elementary entities as there are atoms in 12 g of carbon-12.

The Relative Molecular Mass of Compound formula is defined as the average mass per molecule of a specific isotopic composition to 1/12 the mass of an atom of nuclide carbon-12.

The Relative Atomic Mass formula is defined as as the mass of the atom with teh reference of mass of one atom of carbon-12.

Face Area of Dodecahedron Calculators  Area of Dodecahedron Calculators    

The Face Area of Dodecahedron formula is defined as the amount of space occupied by any one of the 12 faces of Dodecahedron.

Hardness of Material given CSI is figure for general hardness for both green and dry timber at 12 per cent moisture content.

General Strength of Material given CSI is figure for general strength for both green and dry timber at 12 percent moisture content.

The Face Area of Dodecahedron given Volume formula is defined as the amount of space occupied by any one of the 12 faces of Dodecahedron, and calculated using volume of Dodecahedron.

Lattice Energy Calculators    

The Born exponent using Born Lande equation is typically a number between 5 and 12, determined experimentally by measuring the compressibility of the solid, or derived theoretically.

Lattice Energy Calculators    

The Born exponent using Repulsive Interaction is typically a number between 5 and 12, determined experimentally by measuring the compressibility of the solid, or derived theoretically.

Radiation Heat Transfer Calculators  Important Formulas in Radiation Heat Transfer Calculators    

The Net Heat Exchange given Area 1 and Shape Factor 12 formula is defined as the product of surface area, shape factor and the difference between emissive power of both the blackbodies.

Lattice Energy Calculators    

The Born exponent using Born-Lande equation without Madelung constant is typically a number between 5 and 12, determined experimentally by measuring the compressibility of the solid, or derived theoretically.

The Moles of Analyte formula is defined as a unit of measurement that is the amount of a pure substance containing the same number of chemical units (atoms, molecules etc.) as there are atoms in exactly 12 grams of carbon-12 (i.e., 6.022 X 1023).

The Number of Moles of Electron formula is defined as a unit of measurement that is the amount of a pure substance containing the same number of chemical units (atoms, molecules etc.) as there are atoms in exactly 12 grams of carbon-12 (i.e., 6.022 X 1023).

The Relative Atomic Mass of Element formula is defined as the ratio of the average mass per atom of specified composition of an element to 1/12 the mass of an atom of the nuclide carbon-12.

The Moles of Electron given Potentials formula is defined as the amount of a pure substance containing the same number of chemical units (atoms, molecules etc.) as there are atoms in exactly 12 grams of carbon-12 (i.e., 6.022 X 1023).

The Number of Moles given Internal Energy of Ideal Gas formula is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12. So, 1 mol contains 6.022×1023 elementary entities of the substance.

Radiation Formulas Calculators  Important Formulas in Radiation Heat Transfer Calculators    

The Shape Factor 21 given Area of Both Surface and Shape Factor 12 formula is defined as the product of shape factor 12 and the ratio of Surface area 1 by surface area 2.

The Polyhedral Electron Pair Count formula is defined as the difference of electrons from the total electron count in a carbonyl compound, where each metal uses 12 electrons for non-skeletal bonding with carbonyl group.

The Face Area of Icosahedron given Perimeter formula is defined as the amount of space occupied on any one of the 12 triangular faces of an Icosahedron and is calculated using the perimeter of the Icosahedron.

Materials Required per km of Railway Track Calculators    

Length of Single Rail using Sleeper Density formula is defined as per Indian Railways standardized a rail length of 13 m (previously 12.8 m) for broad gauge and 12 m (previously 11.8 m) for MG and NG tracks.

The Dimension b of Slot given Flow of Lubricant formula is defined as the ratio product of 12 times the value of length of the slot, viscosity of lubricant, and flow of lubricant to the product of cube of film thickness and pressure difference.

The Face Area of Dodecahedron given Face Diagonal formula is defined as the amount of space occupied by any one of the 12 faces of Dodecahedron, and calculated using face diagonal of Dodecahedron.

The Face Area of Dodecahedron given Face Perimeter formula is defined as the amount of space occupied by any one of the 12 faces of Dodecahedron, and calculated using face perimeter of Dodecahedron.

The Face Area of Dodecahedron given Space Diagonal formula is defined as the amount of space occupied by any one of the 12 faces of Dodecahedron, and calculated using space diagonal of Dodecahedron.

The Face Area of Dodecahedron given Insphere Radius formula is defined as the amount of space occupied by any one of the 12 faces of Dodecahedron, and calculated using insphere radius of Dodecahedron.

Face Area of Dodecahedron Calculators  Area of Dodecahedron Calculators    

The Face Area of Dodecahedron given Midsphere Radius formula is defined as the amount of space occupied by any one of the 12 faces of Dodecahedron, and calculated using midsphere radius of Dodecahedron.

The Pressure Difference in Terms of Flow of Lubricant formula is defined as the ratio product of 12 times the value of length of the slot, viscosity of lubricant, and flow of lubricant to the product of cube of film thickness and dimension b.

Materials Required per km of Railway Track Calculators    

Density Factor at given Number of Sleepers per km formula is defined as the number of sleepers required under one rail length of railway track. It is expressed as (n + x) where n is the length of one rail in meter and x is constant whose value varies from 3 to 6 (length of one rail is 13 m for B.G. Track and is 12 m for meter gauge (M.G.) track.

The Fluid Film Thickness in Terms of Flow of Lubricant formula is defined as one-third of the power of the ratio product of 12 times the value of length of the slot, viscosity of the lubricant, and flow of lubricant to the product of dimension b and pressure difference.

The Face Area of Dodecahedron given Total Surface Area formula is defined as the amount of space occupied by any one of the 12 faces of Dodecahedron, and calculated using total surface area of Dodecahedron.

The Face Area of Dodecahedron given Circumsphere Radius formula is defined as the amount of space occupied by any one of the 12 faces of Dodecahedron, and calculated using circumsphere radius of Dodecahedron.

The Viscosity of Lubricant in Terms of Flow of Lubricant formula is defined as the ratio of the product of pressure difference, dimension b of the slot, and cube of fluid film thickness to the value of 12 times the product of the length of the slot and flow of lubricant.

The Face Area of Dodecahedron given Lateral Surface Area formula is defined as the amount of space occupied by any one of the 12 faces of Dodecahedron, and calculated using lateral surface area of Dodecahedron.

Materials Required per km of Railway Track Calculators    

Length of Single Rail at given Number of Rails per km formula is defined as per Indian Railways standardized a rail length of 13 m (previously 12.8 m) for broad gauge and 12 m (previously 11.8 m) for MG and NG tracks.

The Face Area of Dodecahedron given Surface to Volume Ratio formula is defined as the amount of space occupied by any one of the 12 faces of Dodecahedron, and calculated using surface to volume ratio of Dodecahedron.

Materials Required per km of Railway Track Calculators    

Length of Single Rail at given Number of Sleepers per km formula is defined as per Indian Railways standardized a rail length of 13 m (previously 12.8 m) for broad gauge and 12 m (previously 11.8 m) for MG and NG tracks.

Radiation Formulas Calculators  Important Formulas in Radiation Heat Transfer Calculators    

The Shape Factor 12 given Area of Both Surface and Shape Factor 21 formula is defined as the product of shape factor 21 and the ratio of Surface area 2 by surface area 1.

The Flow of Lubricant through slot in Terms of Pressure Difference formula is defined as ratio of product of pressure difference, dimension b of slot, and cube of fluid film thickness to value of 12 times product of viscosity of lubricant and length of slot.

The Length of Slot in Direction of Flow in Terms of Flow of Lubricant formula is defined as the ratio of the product of pressure difference, dimension b of the slot, and cube of fluid film thickness to the value of 12 times the product of viscosity of lubricant and flow of lubricant.

Mass Moment of Inertia Calculators    

The Mass moment of inertia of cuboid about y-axis passing through centroid formula is defined as the 1/12 times of mass multiplied to sum of the squares of length and width of cuboid.

Mass Moment of Inertia Calculators    

The Mass moment of inertia of cuboid about z-axis passing through centroid formula is defined as the 1/12 times of mass multiplied to sum of squares of length and height of cuboid.

Radiation Formulas Calculators  Important Formulas in Radiation Heat Transfer Calculators    

The Area of Surface 1 given Area 2 and Radiation Shape Factor for Both Surfaces formula is defined as the product of surface area 2 into the ratio of shape factor 21 to the shape factor 12.

Radiation Formulas Calculators  Important Formulas in Radiation Heat Transfer Calculators    

The Area of Surface 2 given Area 1 and Radiation Shape Factor for Both Surfaces formula is defined as the product of Area of surface 1 into the ratio of shape factor 12 to shape factor 21.

Moment of Inertia in Solids Calculators    

Moment of inertia of rectangle about centroidal axis along y-y parallel to length formula is defined as the product of length of rectangle and cube of breadth of rectangle divided by 12.

Moment of Inertia in Solids Calculators    

Moment of inertia of rectangle about centroidal axis along x-x parallel to breadth formula is defined as the product of breadth of rectangle and cube of the length of rectangle divided by 12.

Moment of Inertia in Solids Calculators    

Moment of Inertia of Hollow Rectangle about Centroidal Axis x-x Parallel to Breadth formula is defined as the 1/12 times of difference in product of breadth, cube of length and product of inner breadth, cube of inner length.

The Nusselt Number based on Diameter for Horizontal Cylinders for Higher Ranges of GrPr formula is defined as the ratio of convective to conductive heat transfer across a boundary for the range of 10^-6 to 10^12.

Mass Moment of Inertia Calculators    

The Mass moment of inertia of cuboid about x-axis passing through centroid, parallel to length formula is defined as the 1/12 times of mass multiplied to sum of square of width and height of cuboid.

Mass Moment of Inertia Calculators    

Mass moment of inertia of rectangular plate about x-axis through centroid, parallel to length formula is defined as the product of mass of rectangle and square of the breadth of rectangle, divided by 12.

Mass Moment of Inertia Calculators    

Mass moment of inertia of rectangular plate about y-axis through centroid, parallel to breadth formula is defined as the product of mass of rectangle and square of the length of rectangle, divided by 12.